Mrs. Peel is bequeathed an old house by an uncle Jack, whom she never knew existed. In the event, he did not exist. The house is a former lunatic asylum and it is all a ruse by a vengeful ex-employee of Mrs. Peel's to submit her to mind games which will drive her insane.
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Did You Know?
The "suicide box" was used earlier as the elevator in Armstrong's factory in "The Cybernauts". See more
(at around 28 minutes) When Steed parks his Bentley, the camera zooms out from him, but the background projection remains the same. See more
This is the horse the kicked the cow... that chased the dog that bit the cat... that killed the rat... that lived in the house that Jack built.
The convict character is named Burton in the credits, but at no time in the episode is his name every spoken. See more