The title is a reference to Broadmoor high-security psychiatric hospital in Crowthorne, Berkshire.

It was the last film appearance of Victoria Hopper who had been a prominent leading lady in the 1930s[citation needed].

An insane killer escapes from Broadmoor Hospital, and returns to the scene of a ten-year-old crime, where the ghost of a servant girl he killed is bent on revenge.

The Monthly Film Bulletin wrote: "This is a hackneyed story ...

"[3] Chibnall and Macfarlaine, writing in The British 'B' Film, describe the film as "a fanciful melodrama ... interesting in the way it confronts the themes of loss, guilt, atonement, revenge and the survival of the spirit, that were preoccupations in a variety of post-war genres.