Ellen Hardy gets a rude awakening when she discovers that her brother and sister are scheduled to leave their mental institution. As children, they were put there after killing their parents. Ellen, who now lives in the house of an old widow, Mrs. Armstrong, takes them in. But if their secret gets out, it could jeopardize Ellen's plans to wed Mrs. Armstrong's stepson. She struggles with anxiety -- until Mrs. Armstrong suddenly turns up dead.
Stella Stevens
as Ellen Hardy
Shelley Winters
as Mrs. Armstrong
Skip Ward
as Sam Aller
Carol Cole
as Chris
Severn Darden
as Nate
Beverly Garland
as Mrs. Racine
Michael Burns
as George
Barbara Sammeth
as Mandy
Lloyd Haynes
as Dr. Marion Kincaid
Jennifer Bishop
as Mrs. Ericson
Gloria Manon
as Edna
Lou Kane
as Armand Racine