- HD 1080
- Runtime: 81m.
- Status: Released
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- Languages: en
- Country: United States of America
- Director: David DeCoteau
- Stars: Linnea Quigley, Lyle Waggoner, Karen Russell, Stephen Steward, Mike Jacobs Jr.
- keywords: sanitarium
- Production_studio: Filmtrust, Cinema Home Video Productions
- Slogan: They lust for revenge... They do it at night... And they're more than lethal.
- The Murder Weapon is featured in the top rankings of 1989
- #99 in Top Thriller Movies of 1989
Two mobster daughters leave a sanitarium, host a party inviting ex-boyfriends, who then start disappearing mysteriously.
