Atmospheric TV movie about a Sherlock Holmes type (Leslie Nielson) who occasionally assists the San Francisco police with serious crimes. Set in 1890, the whole thing feels very Jack the Ripper-ish, and there is a Mr. Hyde styled monster running loose in town seemingly killing people at random. Nielson's breezy private detective eventually puts two and two together, and realizes the creature has something very specific in mind with each murder. Mark Richman plays a troubled acquaintance who may hold the key to the mystery, and Werner Klemperer of all people plays the Mr. Hyde-ish killer. Tame by today's standards, this low-budget but fanciful tale still packs a punch. Later released theatrically. Too bad it wasn't shot in color. Nielson, whose hair was still dark in those days, is an absolute hoot.

Dark Intruder is directed by Harvey Hart and written by Barre Lyndon. It stars Leslie Nielsen, Gilbert Green, Charles Bolender, Mark Richman, Judith Meredith and Werner Klemperer. Music is by Lalo Schifrin and cinematography by John F. Warren.

A murderous fiend is terrorising San Francisco 1890, so supernatural expert Brett Kingsford (Nielsen) takes special interest in the crimes.

A pilot for a TV show that wasn't picked up, Dark Intruder is a whole bunch of spooky fun. Clocking in at just under an hour in length, the pic makes up for what it lacks in mystery inventiveness, with sheer schlocky shenanigans. Moody courtesy of the period setting, complete with lots of fog, shadows and gaslights, the narrative indulges us in gods, oriental mysticism and Sumerian demons, whilst a dwarf, a sinister fortune teller and a mandrake plant all add quirky qualities to the play. There's even a kicker at the finale, so as to not rest on its laurels.

Recommended for sure. 6.5/10

Long before he became an immortal slapstick icon with his role as Frank Drebin in "The Naked Gun" (and became typecast as such until his death), Leslie Nielsen actually was a pretty versatile actor and appeared in numerous cult movies. He starred in the classic fifties Sci-Fi movie "Forbidden Planet" and in the schlocky seventies eco-horror flick "Day of the Animals", for example. Very few people know, however, that Leslie was also the star of this unsold and meanwhile long forgotten pilot episode of a supernaturally themed period series entitled "The Dark Cloak". The pilot film – with an extremely short running time of barely 59 minutes – takes place in the year 1891 in the moody and fog-enshrouded streets of San Francisco. Nielsen is Brett Kingsford, a rather eccentric private investigator specialized the occult. He has a midget butler named Nikolai and doesn't want the world to know that he collaborates with the police, so he disguises whenever they meet to discuss a case. The city is plagued by a series of violent killings, seemingly committed by a monstrous being. Robert Vandenburg, a personal friend of Kingsford who's about to be married, fears that he commits the murders in a sort of trance, but our paranormal investigator suspects there is another explanation.

The Brett Kingsford character is intelligent and slightly arrogant, like Sherlock Holmes, and Nikolai often acts like a miniature version of Dr. Watson. The monstrous murderer is very much like Mr. Hyde (the malicious other side of Dr. Jekyll), while the timing and decors immediately remind you of numerous movies about the infamous Jack the Ripper stories. Most likely these are all the reasons why the TV-series never came and "Dark Intruder" remained an independently released feature film. It's too reminiscent to a lot of other movie franchises and potential sponsors probably didn't want to get accused of being derivative and/or unoriginal. But it nevertheless remains a damn shame that "Dark Intruder" became so obscure, as it's a splendid mystery/thriller with a compelling and convoluted plot, witty and creative comical elements and great performances. The murders as well as various other sequences are tense and hugely atmospheric. The script contains some delightful dialogs, like: "I sense strong psychic indications in this room. Yeah, try using that in court!" and the climax has a nice unexpected twist in store.