Randall and Hopkirk (Deceased) - Season 1 - Eps 17: Somebody Just Walked Over My Grave
Marty finds somebody digging around his grave. He sends Jeff to investigate the cemetery and in doing so is knocked unconscious several times by a masked 18th century axe wielder. Suspecting the gardener, Jeff accepts a job for a wealthy man in the nearby mansion and stumbles on an intricate plot to steal his insane agoraphobic son through an underground tunnel pretending to hold him to ransom. It is all part of a plot to inherit his father's fortune but when he marries his young housekeeper the plan is demised. Geoffrey Hughes appears as Harper. Also Andrew Sachs, appears in a small pre-Fawlty Towers role as the English commentator during the first leg of the international football match that Marty goes to watch.
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