RubyMovie
Ruby Claire, single mother of deaf-mute teenager Leslie, operates a drive-in theater, where she employs a number of ex-cons, some of whom begin to die in bizarre ways. Eventually, Ruby discovers that the spirit of her dead mobster husband has possessed Leslie, seeking revenge through the tormented girl. As Leslie picks off her father's former associates, she also begins to target Ruby herself.
About Ruby
Ruby is a 1977 horror movie directed by Curtis Harrington.
The production information lists a runtime of 1h 25m, production credits from United States of America, an original language code of EN.
The credited cast includes Piper Laurie, Stuart Whitman, Janit Baldwin, Roger Davis. The synopsis above summarizes the central premise without adding details beyond the available title information.
