Susan Shelley thinks her father, Edward, killed her mother, Jessica, years ago. Newly released from an asylum after 3 years, she is reunited with her father and a new stepmother, Francene, but suspicious goings-on threaten to push her over the edge.
Don Ameche as Edward Shelley
Martha Hyer as Francene Shelley
Susan Gordon as Susan Shelley
Zsa Zsa Gabor as Jessica Flagmore Shelley
Maxwell Reed as Anthony, the caretaker
Wendell Corey as Lawyer Clayborn
Signe Hasso as Sister René
Anna Lee as Elsie Kornwald
Kelly Corcoran as Little boy at estate sale
Gene Tierney was originally announced for a lead role and Hedy Lamarr was signed to support Ameche and Hyer. However, Lamarr was fired from the film when she collapsed during filming from nervous exhaustion. She was replaced by Gabor.