Randall and Hopkirk (Deceased) - Season 1 - Eps 13: But What a Sweet Little Room
Jeff investigates the disappearance of a wealthy young heiress's aunt. When she is then killed by a hit and run driver he is led to a medium previously visited by the aunt and uses Jeannie as a decoy to foil a thieving operation in which middle class men rob wealthy widows by murdering them in the room of the episode title, which then transpires to be a gas chamber in disguise.
About Randall and Hopkirk (Deceased)

Title: Randall and Hopkirk (Deceased)
First Air Date: 1969-09-21
Last Air Date: 1970-03-13
Status: Ended
Rating: 7/10 (from 17 votes)
Language: EN
Seasons: 1
Total Episodes: 26
Network: ITV1
Genres: Comedy, Sci-Fi & Fantasy, Crime
Production Companies: Unknown
Synopsis
Randall and Hopkirk (Deceased) is a British private detective television series. In the initial episode Hopkirk is murdered during an investigation, but returns as a ghost. Randall is the only main character able to see or hear him, although certain minor characters are also able to do so in various circumstances throughout the series.
Cast

Annette Andre
Jeannie Hopkirk

Kenneth Cope
Marty Hopkirk

Mike Pratt
Jeff Randall

Martin Wimbush
Head Waiter