S04E18: The Night of the Janus
A melody holds the clue West needs to trap a departmental traitor.
Previous Episode 
Season 1
The Night of the Inferno
S1E1 / 17 Sep 1965
The Night of the Deadly Bed
S1E2 / 24 Sep 1965
The Night the Wizard Shook the Earth
S1E3 / 01 Oct 1965
The Night of Sudden Death
S1E4 / 08 Oct 1965
The Night of the Casual Killer
S1E5 / 15 Oct 1965
The Night of a Thousand Eyes
S1E6 / 22 Oct 1965
The Night of the Glowing Corpse
S1E7 / 29 Oct 1965
The Night of the Dancing Death
S1E8 / 05 Nov 1965
The Night of the Double-Edged Knife
S1E9 / 12 Nov 1965
The Night That Terror Stalked the Town
S1E10 / 19 Nov 1965
The Night of the Red-Eyed Madmen
S1E11 / 26 Nov 1965
The Night of the Human Trigger
S1E12 / 03 Dec 1965
The Night of the Torture Chamber
S1E13 / 10 Dec 1965
The Night of the Howling Light
S1E14 / 17 Dec 1965
The Night of the Fatal Trap
S1E15 / 24 Dec 1965
The Night of the Steel Assassin
S1E16 / 07 Jan 1966
The Night the Dragon Screamed
S1E17 / 14 Jan 1966
The Night of the Flaming Ghost
S1E18 / 21 Jan 1966
The Night of the Grand Emir
S1E19 / 28 Jan 1966
The Night of the Whirring Death
S1E20 / 18 Feb 1966
The Night of the Puppeteer
S1E21 / 25 Feb 1965
The Night of the Bars of Hell
S1E22 / 04 Mar 1966
The Night of the Two-Legged Buffalo
S1E23 / 11 Mar 1966
The Night of the Druid's Blood
S1E24 / 25 Mar 1966
The Night of the Freebooters
S1E25 / 01 Apr 1966
The Night of the Burning Diamond
S1E26 / 08 Apr 1966
The Night of the Murderous Spring
S1E27 / 15 Apr 1966
The Night of the Sudden Plague
S1E28 / 22 Apr 1966
Season 2
The Night of the Eccentrics
S2E1 / 16 Sep 1966
The Night of the Golden Cobra
S2E2 / 23 Sep 1966
The Night of the Raven
S2E3 / 30 Sep 1966
The Night of the Big Blast
S2E4 / 07 Oct 1966
The Night of the Returning Dead
S2E5 / 14 Oct 1966
The Night of the Flying Pie Plate
S2E6 / 21 Oct 1966
The Night of the Poisonous Posey
S2E7 / 28 Oct 1966
The Night of the Bottomless Pit
S2E8 / 04 Nov 1966
The Night of the Watery Death
S2E9 / 11 Nov 1966
The Night of the Green Terror
S2E10 / 18 Nov 1966
The Night of the Ready-Made Corpse
S2E11 / 25 Nov 1966
The Night of the Man-Eating House
S2E12 / 12 Dec 1966
The Night of the Skulls
S2E13 / 16 Dec 1966
The Night of the Infernal Machine
S2E14 / 23 Dec 1966
The Night of the Lord of Limbo
S2E15 / 30 Dec 1966
The Night of the Tottering Tontine
S2E16 / 06 Jan 1967
The Night of the Feathered Fury
S2E17 / 13 Jan 1967
The Night of the Gypsy Peril
S2E18 / 20 Jan 1967
The Night of the Tartar
S2E19 / 03 Feb 1967
The Night of the Vicious Valentine
S2E20 / 10 Feb 1967
The Night of the Brain
S2E21 / 17 Feb 1967
The Night of the Deadly Bubble
S2E22 / 24 Feb 1967
The Night of the Surreal McCoy
S2E23 / 03 Mar 1967
The Night of the Colonel's Ghost
S2E24 / 10 Mar 1967
The Night of the Deadly Blossom
S2E25 / 17 Mar 1967
The Night of the Cadre
S2E26 / 24 Mar 1967
The Night of the Wolf
S2E27 / 31 Mar 1967
The Night of the Bogus Bandits
S2E28 / 07 Apr 1967
Season 3
The Night of the Bubbling Death
S3E1 / 08 Sep 1967
The Night of the Firebrand
S3E2 / 15 Sep 1967
The Night of the Assassin
S3E3 / 22 Sep 1967
The Night Dr. Loveless Died
S3E4 / 29 Sep 1967
The Night of the Jack O'Diamonds
S3E5 / 06 Oct 1967
The Night of the Samurai
S3E6 / 13 Oct 1967
The Night of the Hangman
S3E7 / 20 Oct 1967
The Night of Montezuma's Hordes
S3E8 / 27 Oct 1967
The Night of the Circus of Death
S3E9 / 03 Nov 1967
The Night of the Falcon
S3E10 / 10 Nov 1967
The Night of the Cut-throats
S3E11 / 17 Nov 1967
The Night of the Legion of Death
S3E12 / 24 Nov 1967
The Night of the Turncoat
S3E13 / 01 Dec 1967
The Night of the Iron Fist
S3E14 / 08 Dec 1967
The Night of the Running Death
S3E15 / 15 Dec 1967
The Night of the Arrow
S3E16 / 29 Dec 1967
The Night of the Headless Woman
S3E17 / 05 Jan 1968
The Night of the Vipers
S3E18 / 12 Jan 1968
The Night of the Underground Terror
S3E19 / 19 Jan 1968
The Night of the Death Masks
S3E20 / 26 Jan 1968
The Night of the Undead
S3E21 / 02 Feb 1968
The Night of the Amnesiac
S3E22 / 09 Feb 1968
The Night of the Simian Terror
S3E23 / 16 Feb 1968
The Night of the Death Maker
S3E24 / 23 Feb 1968
Season 4
The Night of the Big Blackmail
S4E1 / 27 Sep 1968
The Night of the Doomsday Formula
S4E2 / 04 Oct 1968
The Night of the Juggernaut
S4E3 / 11 Oct 1968
The Night of the Sedgewick Curse
S4E4 / 18 Oct 1968
The Night of the Gruesome Games
S4E5 / 25 Oct 1968
The Night of the Kraken
S4E6 / 01 Nov 1968
The Night of the Fugitives
S4E7 / 08 Nov 1968
The Night of the Egyptian Queen
S4E8 / 15 Nov 1968
The Night of Fire and Brimstone
S4E9 / 22 Nov 1968
The Night of the Camera
S4E10 / 29 Nov 1968
The Night of the Avaricious Actuary
S4E11 / 06 Dec 1968
The Night of Miguelito's Revenge
S4E12 / 13 Dec 1968
The Night of the Pelican
S4E13 / 26 Dec 1968
The Night of the Spanish Curse
S4E14 / 03 Jan 1969
The Night of the Winged Terror (1)
S4E15 / 17 Jan 1969
The Night of the Winged Terror (2)
S4E16 / 24 Jan 1969
The Night of the Sabatini Death
S4E17 / 07 Feb 1969
The Night of the Janus
S4E18 / 14 Feb 1969
The Night of the Pistoleros
S4E19 / 21 Feb 1969
The Night of the Diva
S4E20 / 07 Mar 1969
The Night of the Bleak Island
S4E21 / 14 Mar 1969
The Night of the Cossacks
S4E22 / 21 Mar 1969
The Night of the Plague
S4E23 / 04 Apr 1969
The Night of the Tycoons
S4E24 / 11 Apr 1969
Robert Conrad
James T. West
