Dark Intruder is a 1965 television movie

Television movie

A television film is a feature film that is a television program produced for and originally distributed by a television network, in contrast to...

 that was released theatrically. It is a horror film

Horror film

Horror films seek to elicit a negative emotional reaction from viewers by playing on the audience's most primal fears. They often feature scenes that startle the viewer through the means of macabre and the supernatural, thus frequently overlapping with the fantasy and science fiction genres...

 starring Leslie Nielsen

Leslie Nielsen

Leslie William Nielsen, OC was a Canadian and naturalized American actor and comedian. Nielsen appeared in more than one hundred films and 1,500 television programs over the span of his career, portraying more than 220 characters...

, Mark Richman and Judi Meredith

Judi Meredith

-Early life:Born Judith Clare Boutin in Portland, Oregon, she was a talented figure skater who became a professional star performer with the Ice Follies. All this changed when she broke her back in an accident...

 set in San Francisco in 1890 concerning playboy sleuth Brett Kingsford (Nielsen). Kingsford is an expert on the supernatural and along with his dwarf assistant Nicola he helps the police uncover the scheme of a Sumerian demon to return to earth and take over a human body.

This atmospheric black-and-white film is only 59 minutes long and was directed by Harvey Hart

Harvey Hart

Harvey Hart was a Canadian film director and television producer.Hart studied at the University of Toronto, before being hired by the CBC in 1952...

. It was the pilot for a failed television series called The Black Cloak and was written by Barré Lyndon

Barré Lyndon

Barré Lyndon was a British playwright and screenwriter. The pseudonym was presumably taken from the title character of Thackeray's novel....

. In plot and character it greatly resembles Chamber of Horrors, which was made the next year and had a similar fate.