I Saw What You Did (1965)

Teenagers Libby and Kit innocently spend an evening making random prank calls that lead to murderous consequences.

Director: William Castle

Cast: Joan Crawford, John Ireland, Leif Erickson, Sara Lane, Andi Garrett, Sharyl Locke, Patricia Breslin, John Archer, John Crawford, Joyce Meadows, Sara Anderson, Russ Bender, Dee Carroll, John Crowther, Douglas Evans, Janet Hamill, Tom Hatten, Glen Vernon