S05E20: The Case of the Poison Pen-Pal
A casual pen pal relationship leads to insider information and murder.
Previous Episode 
Season 1
The Case of the Restless Redhead
S1E1 / 21 Sep 1957
The Case of the Sleepwalker's Niece
S1E2 / 28 Sep 1957
The Case of the Nervous Accomplice
S1E3 / 05 Oct 1957
The Case of the Drowning Duck
S1E4 / 12 Oct 1957
The Case of the Sulky Girl
S1E5 / 19 Oct 1957
The Case of the Silent Partner
S1E6 / 26 Oct 1957
The Case of the Angry Mourner
S1E7 / 02 Nov 1957
The Case of the Crimson Kiss
S1E8 / 09 Nov 1957
The Case of the Vagabond Vixen
S1E9 / 16 Nov 1957
The Case of the Runaway Corpse
S1E10 / 23 Nov 1957
The Case of the Crooked Candle
S1E11 / 30 Nov 1957
The Case of the Negligent Nymph
S1E12 / 07 Dec 1957
The Case of the Moth-Eaten Mink
S1E13 / 14 Dec 1957
The Case of the Baited Hook
S1E14 / 21 Dec 1957
The Case of the Fan-Dancer's Horse
S1E15 / 28 Dec 1957
The Case of the Demure Defendant
S1E16 / 04 Jan 1958
The Case of the Sun Bather's Diary
S1E17 / 11 Jan 1958
The Case of the Cautious Coquette
S1E18 / 18 Jan 1958
The Case of the Haunted Husband
S1E19 / 25 Jan 1958
The Case of the Lonely Heiress
S1E20 / 01 Feb 1958
The Case of the Green-Eyed Sister
S1E21 / 08 Feb 1958
The Case of the Fugitive Nurse
S1E22 / 15 Feb 1958
The Case of the One-Eyed Witness
S1E23 / 22 Feb 1958
The Case of the Deadly Double
S1E24 / 01 Mar 1958
The Case of the Empty Tin
S1E25 / 08 Mar 1958
The Case of the Half-Wakened Wife
S1E26 / 15 Mar 1958
The Case of the Desperate Daughter
S1E27 / 22 Mar 1958
The Case of the Daring Decoy
S1E28 / 29 Mar 1958
The Case of the Hesitant Hostess
S1E29 / 05 Apr 1958
The Case of the Screaming Woman
S1E30 / 26 Apr 1958
The Case of the Fiery Fingers
S1E31 / 03 May 1958
The Case of the Substitute Face
S1E32 / 10 May 1958
The Case of the Long-Legged Models
S1E33 / 17 May 1958
The Case of the Gilded Lily
S1E34 / 24 May 1958
The Case of the Lazy Lover
S1E35 / 31 May 1958
The Case of the Prodigal Parent
S1E36 / 07 Jun 1958
The Case of the Black-Eyed Blonde
S1E37 / 14 Jun 1958
The Case of the Terrified Typist
S1E38 / 21 Jun 1958
The Case of the Rolling Bones
S1E39 / 28 Jun 1958
Season 2
The Case of the Corresponding Corpse
S2E1 / 20 Sep 1958
The Case of the Lucky Loser
S2E2 / 27 Sep 1958
The Case of the Pint-Sized Client
S2E3 / 04 Oct 1958
The Case of the Sardonic Sergeant
S2E4 / 11 Oct 1958
The Case of the Curious Bride
S2E5 / 18 Oct 1958
The Case of the Buried Clock
S2E6 / 01 Nov 1958
The Case of the Married Moonlighter
S2E7 / 08 Nov 1958
The Case of the Jilted Jockey
S2E8 / 15 Nov 1958
The Case of the Purple Woman
S2E9 / 06 Dec 1958
The Case of the Fancy Figures
S2E10 / 13 Dec 1958
The Case of the Perjured Parrot
S2E11 / 20 Dec 1958
The Case of the Shattered Dream
S2E12 / 03 Jan 1959
The Case of the Borrowed Brunette
S2E13 / 10 Jan 1959
The Case of the Glittering Goldfish
S2E14 / 17 Jan 1959
The Case of the Foot-Loose Doll
S2E15 / 24 Jan 1959
The Case of the Fraudulent Foto
S2E16 / 07 Feb 1959
The Case of the Romantic Rogue
S2E17 / 14 Feb 1959
The Case of the Jaded Joker
S2E18 / 21 Feb 1959
The Case of the Caretaker's Cat
S2E19 / 07 Mar 1959
The Case of the Stuttering Bishop
S2E20 / 14 Mar 1959
The Case of the Lost Last Act
S2E21 / 21 Mar 1959
The Case of the Bedeviled Doctor
S2E22 / 04 Apr 1959
The Case of the Howling Dog
S2E23 / 11 Apr 1959
The Case of the Calendar Girl
S2E24 / 18 Apr 1959
The Case of the Petulant Partner
S2E25 / 25 Apr 1959
The Case of the Dangerous Dowager
S2E26 / 09 May 1959
The Case of the Deadly Toy
S2E27 / 16 May 1959
The Case of the Spanish Cross
S2E28 / 30 May 1959
The Case of the Dubious Bridegroom
S2E29 / 13 Jun 1959
The Case of the Lame Canary
S2E30 / 27 Jun 1959
Season 3
The Case of the Spurious Sister
S3E1 / 03 Oct 1959
The Case of the Watery Witness
S3E2 / 10 Oct 1959
The Case of the Garrulous Gambler
S3E3 / 17 Oct 1959
The Case of the Blushing Pearls
S3E4 / 24 Oct 1959
The Case of the Startled Stallion
S3E5 / 31 Oct 1959
The Case of Paul Drake's Dilemma
S3E6 / 14 Nov 1959
The Case of the Golden Fraud
S3E7 / 21 Nov 1959
The Case of the Bartered Bikini
S3E8 / 05 Dec 1959
The Case of the Artful Dodger
S3E9 / 12 Dec 1959
The Case of the Lucky Legs
S3E10 / 19 Dec 1959
The Case of the Violent Village
S3E11 / 02 Jan 1960
The Case of the Frantic Flyer
S3E12 / 09 Jan 1960
The Case of the Wayward Wife
S3E13 / 23 Jan 1960
The Case of the Prudent Prosecutor
S3E14 / 30 Jan 1960
The Case of the Gallant Grafter
S3E15 / 06 Feb 1960
The Case of the Wary Wildcatter
S3E16 / 20 Feb 1960
The Case of the Mythical Monkeys
S3E17 / 27 Feb 1960
The Case of the Singing Skirt
S3E18 / 12 Mar 1960
The Case of the Bashful Burro
S3E19 / 26 Mar 1960
The Case of the Crying Cherub
S3E20 / 09 Apr 1960
The Case of the Nimble Nephew
S3E21 / 23 Apr 1960
The Case of the Madcap Modiste
S3E22 / 30 Apr 1960
The Case of the Slandered Submarine
S3E23 / 14 May 1960
The Case of the Ominous Outcast
S3E24 / 21 May 1960
The Case of the Irate Inventor
S3E25 / 28 May 1960
The Case of the Flighty Father
S3E26 / 11 Jun 1960
Season 4
The Case of the Treacherous Toupee
S4E1 / 17 Sep 1960
The Case of the Credulous Quarry
S4E2 / 24 Sep 1960
The Case of the Ill-Fated Faker
S4E3 / 01 Oct 1960
The Case of the Singular Double
S4E4 / 08 Oct 1960
The Case of the Lavender Lipstick
S4E5 / 15 Oct 1960
The Case of the Wandering Widow
S4E6 / 22 Oct 1960
The Case of the Clumsy Clown
S4E7 / 05 Nov 1960
The Case Of The Provocative Protégé
S4E8 / 12 Nov 1960
The Case of the Nine Dolls
S4E9 / 19 Nov 1960
The Case of the Loquacious Liar
S4E10 / 03 Dec 1960
The Case of the Red Riding Boots
S4E11 / 10 Dec 1960
The Case of the Larcenous Lady
S4E12 / 17 Dec 1960
The Case of the Envious Editor
S4E13 / 07 Jan 1961
The Case of the Resolute Reformer
S4E14 / 14 Jan 1961
The Case of the Fickle Fortune
S4E15 / 21 Jan 1961
The Case of the Waylaid Wolf
S4E16 / 04 Feb 1961
The Case of the Wintry Wife
S4E17 / 18 Feb 1961
The Case of the Angry Dead Man
S4E18 / 25 Feb 1961
The Case of the Blind Man's Bluff
S4E19 / 11 Mar 1961
The Case of the Barefaced Witness
S4E20 / 18 Mar 1961
The Case of the Difficult Detour
S4E21 / 25 Mar 1961
The Case of the Cowardly Lion
S4E22 / 08 Apr 1961
The Case of the Torid Tapestry
S4E23 / 22 Apr 1961
The Case of the Violent Vest
S4E24 / 29 Apr 1961
The Case of the Misguided Missile
S4E25 / 06 May 1961
The Case of the Duplicate Daughter
S4E26 / 20 May 1961
The Case of the Grumbling Grandfather
S4E27 / 27 May 1961
The Case of the Guilty Clients
S4E28 / 10 Jun 1961
Season 5
The Case of the Jealous Journalist
S5E1 / 02 Sep 1961
The Case of the Impatient Partner
S5E2 / 16 Sep 1961
The Case of the Missing Melody
S5E3 / 30 Sep 1961
The Case of the Malicious Mariner
S5E4 / 07 Oct 1961
The Case of the Crying Comedian
S5E5 / 14 Oct 1961
The Case of the Meddling Medium
S5E6 / 21 Oct 1961
The Case of the Pathetic Patient
S5E7 / 28 Oct 1961
The Case of the Traveling Treasure
S5E8 / 04 Nov 1961
The Case of the Posthumous Painter
S5E9 / 11 Nov 1961
The Case of the Injured Innocent
S5E10 / 18 Nov 1961
The Case of the Left-Handed Liar
S5E11 / 25 Nov 1961
The Case of the Brazen Bequest
S5E12 / 02 Dec 1961
The Case of the Renegade Refugee
S5E13 / 09 Dec 1961
The Case of the Unwelcome Bride
S5E14 / 16 Dec 1961
The Case of the Roving River
S5E15 / 30 Dec 1961
The Case of the Shapely Shadow
S5E16 / 06 Jan 1962
The Case of the Captain's Coins
S5E17 / 13 Jan 1962
The Case of the Tarnished Trademark
S5E18 / 20 Jan 1962
The Case of the Glamorous Ghost
S5E19 / 03 Feb 1962
The Case of the Poison Pen-Pal
S5E20 / 10 Feb 1962
The Case of the Mystified Miner
S5E21 / 24 Feb 1962
The Case of the Crippled Cougar
S5E22 / 03 Mar 1962
The Case of the Absent Artist
S5E23 / 17 Mar 1962
The Case of the Melancholy Marksman
S5E24 / 24 Mar 1962
The Case of the Angry Astronaut
S5E25 / 07 Apr 1962
The Case of the Borrowed Baby
S5E26 / 14 Apr 1962
The Case of the Counterfeit Crank
S5E27 / 28 Apr 1962
The Case of the Ancient Romeo
S5E28 / 05 May 1962
The Case of the Promoter's Pillbox
S5E29 / 19 May 1962
The Case of the Lonely Eloper
S5E30 / 26 May 1962
Season 6
The Case of the Bogus Books
S6E1 / 27 Sep 1962
The Case of the Capricious Corpse
S6E2 / 04 Oct 1962
The Case of the Playboy Pugilist
S6E3 / 11 Oct 1962
The Case of the Double-Entry Mind
S6E4 / 18 Oct 1962
The Case of the Hateful Hero
S6E5 / 25 Oct 1962
The Case of the Dodging Domino
S6E6 / 01 Nov 1962
The Case of the Unsuitable Uncle
S6E7 / 08 Nov 1962
The Case of the Stand-In Sister
S6E8 / 15 Nov 1962
The Case of the Weary Watchdog
S6E9 / 29 Nov 1962
The Case of the Lurid Letter
S6E10 / 06 Dec 1962
The Case of the Fickle Filly
S6E11 / 13 Dec 1962
The Case of the Polka-Dot Pony
S6E12 / 20 Dec 1962
The Case of the Shoplifter's Shoe
S6E13 / 03 Jan 1963
The Case of the Bluffing Blast
S6E14 / 10 Jan 1963
The Case of the Prankish Professor
S6E15 / 17 Jan 1963
The Case of Constant Doyle
S6E16 / 31 Jan 1963
The Case of the Libelous Locket
S6E17 / 07 Feb 1963
The Case of the Two-Faced Turnabout
S6E18 / 14 Feb 1963
The Case of the Surplus Suitor
S6E19 / 28 Feb 1963
The Case of the Golden Oranges
S6E20 / 07 Mar 1963
The Case of the Lawful Lazarus
S6E21 / 14 Mar 1963
The Case of the Velvet Claws
S6E22 / 21 Mar 1963
The Case of the Lover's Leap
S6E23 / 04 Apr 1963
The Case of the Elusive Element
S6E24 / 11 Apr 1963
The Case of the Greek Goddess
S6E25 / 18 Apr 1963
The Case of the Skeleton's Closet
S6E26 / 02 May 1963
The Case of the Potted Planter
S6E27 / 09 May 1963
The Case of the Witless Witness
S6E28 / 16 May 1963
Season 7
The Case of the Nebulous Nephew
S7E1 / 26 Sep 1963
The Case of the Shifty Shoebox
S7E2 / 03 Oct 1963
The Case of the Drowsy Mosquito
S7E3 / 10 Oct 1963
The Case of the Deadly Verdict
S7E4 / 17 Oct 1963
The Case of the Decadent Dean
S7E5 / 24 Oct 1963
The Case of the Reluctant Model
S7E6 / 31 Oct 1963
The Case of the Bigamous Spouse
S7E7 / 14 Nov 1963
The Case of the Floating Stones
S7E8 / 21 Nov 1963
The Case of the Festive Felon
S7E9 / 28 Nov 1963
The Case of the Devious Delinquent
S7E10 / 05 Dec 1963
The Case of the Bouncing Boomerang
S7E11 / 12 Dec 1963
The Case of the Badgered Brother
S7E12 / 19 Dec 1963
The Case of the Wednesday Woman
S7E13 / 02 Jan 1964
The Case of the Accosted Accountant
S7E14 / 09 Jan 1964
The Case of the Capering Camera
S7E15 / 16 Jan 1964
The Case of the Ice-Cold Hands
S7E16 / 23 Jan 1964
The Case of the Bountiful Beauty
S7E17 / 06 Feb 1964
The Case of the Nervous Neighbor
S7E18 / 13 Feb 1964
The Case of the Fifty-Millionth Frenchman
S7E19 / 20 Feb 1964
The Case of the Frightened Fisherman
S7E20 / 27 Feb 1964
The Case of the Arrogant Arsonist
S7E21 / 05 Mar 1964
The Case of the Garrulous Go-Between
S7E22 / 12 Mar 1964
The Case of the Woeful Widower
S7E23 / 26 Mar 1964
The Case of the Simple Simon
S7E24 / 02 Apr 1964
The Case of the Illicit Illusion
S7E25 / 09 Apr 1964
The Case of the Antic Angel
S7E26 / 16 Apr 1964
The Case of the Careless Kidnapper
S7E27 / 30 Apr 1964
The Case of the Drifting Dropout
S7E28 / 07 May 1964
The Case of the Tandem Target
S7E29 / 14 May 1964
The Case of the Ugly Duckling
S7E30 / 21 May 1964
Season 8
The Case of the Missing Button
S8E1 / 24 Sep 1964
The Case of the Paper Bullets
S8E2 / 01 Oct 1964
The Case of the Scandalous Sculptor
S8E3 / 08 Oct 1964
The Case of the Sleepy Slayer
S8E4 / 15 Oct 1964
The Case of the Betrayed Bride
S8E5 / 22 Oct 1964
The Case of the Nautical Knot
S8E6 / 29 Oct 1964
The Case of the Bullied Bowler
S8E7 / 05 Nov 1964
The Case of a Place Called Midnight
S8E8 / 12 Nov 1964
The Case of the Tragic Trophy
S8E9 / 19 Nov 1964
The Case of the Reckless Rockhound
S8E10 / 26 Nov 1964
The Case of the Latent Lover
S8E11 / 03 Dec 1964
The Case of the Wooden Nickels
S8E12 / 10 Dec 1964
The Case of the Blonde Bonanza
S8E13 / 17 Dec 1964
The Case of the Ruinous Road
S8E14 / 31 Dec 1964
The Case of the Frustrated Folk Singer
S8E15 / 07 Jan 1965
The Case of the Thermal Thief
S8E16 / 14 Jan 1965
The Case of the Golden Venom
S8E17 / 21 Jan 1965
The Case of the Tell-Tale Tap
S8E18 / 04 Feb 1965
The Case of the Feather Cloak
S8E19 / 11 Feb 1965
The Case of the Lover's Gamble
S8E20 / 18 Feb 1965
The Case of the Fatal Fetish
S8E21 / 04 Mar 1965
The Case of the Sad Sicilian
S8E22 / 11 Mar 1965
The Case of the Murderous Mermaid
S8E23 / 18 Mar 1965
The Case of the Careless Kitten
S8E24 / 25 Mar 1965
The Case of the Deadly Debt
S8E25 / 01 Apr 1965
The Case of the Gambling Lady
S8E26 / 08 Apr 1965
The Case of the Duplicate Case
S8E27 / 22 Apr 1965
The Case of the Grinning Gorilla
S8E28 / 29 Apr 1965
The Case of the Wrongful Writ
S8E29 / 06 May 1965
The Case of the Mischievous Doll
S8E30 / 13 May 1965
Season 9
The Case of the Laughing Lady
S9E1 / 12 Sep 1965
The Case of the Fatal Fortune
S9E2 / 19 Sep 1965
The Case of the Candy Queen
S9E3 / 26 Sep 1965
The Case of the Cheating Chancellor
S9E4 / 03 Oct 1965
The Case of the Impetuous Imp
S9E5 / 10 Oct 1965
The Case of the Carefree Coronary
S9E6 / 17 Oct 1965
The Case of the Hasty Honeymooner
S9E7 / 24 Oct 1965
The Case of the Twelfth Wildcat
S9E8 / 31 Oct 1965
The Case of the Wrathful Wraith
S9E9 / 07 Nov 1965
The Case of the Runaway Racer
S9E10 / 14 Nov 1965
The Case of the Silent Six
S9E11 / 21 Nov 1965
The Case of the Fugitive Fraulein
S9E12 / 28 Nov 1965
The Case of the Baffling Bug
S9E13 / 12 Dec 1965
The Case of the Golden Girls
S9E14 / 19 Dec 1965
The Case of the Bogus Buccaneers
S9E15 / 09 Jan 1966
The Case of the Midnight Howler
S9E16 / 16 Jan 1966
The Case of the Vanishing Victim
S9E17 / 23 Jan 1966
The Case of the Golfer's Gambit
S9E18 / 30 Jan 1966
The Case of the Sausalito Sunrise
S9E19 / 13 Feb 1966
The Case of the Scarlet Scandal
S9E20 / 20 Feb 1966
The Case of the Twice-Told Twist
S9E21 / 27 Feb 1966
The Case of the Avenging Angel
S9E22 / 13 Mar 1966
The Case of the Tsarina's Tiara
S9E23 / 20 Mar 1966
The Case of the Fanciful Frail
S9E24 / 27 Mar 1966
The Case of the Unwelcome Well
S9E25 / 03 Apr 1966
The Case of the Dead Ringer
S9E26 / 17 Apr 1966
The Case of the Misguided Model
S9E27 / 24 Apr 1966
The Case of the Positive Negative
S9E28 / 01 May 1966
The Case of the Crafty Kidnapper
S9E29 / 15 May 1966
The Case of the Final Fadeout
S9E30 / 22 May 1966
Raymond Burr
Perry Mason
Barbara Hale
Della Street
William Hopper
Paul Drake
William Talman
Hamilton Burger
