Unhinged

Unhinged is a 1982 American slasher film directed by Don Gronquist, written by Gronquist and Reagan Ramsey, and starring Laurel Munson, Janet Penner, and Sara Ansley. The film follows three young women who, after suffering a car accident, are taken in by a mysterious family at their rural Pacific Northwest mansion, where they are subsequently stalked by a violent murderer.