Young nurse Jill Holden gets involved with an extortion gang targeting Mrs Cheam, one of her patients. When Mrs. Cheam is murdered, Jill becomes a suspect and must clear her name.

Joan Rice
as Jill Holden

Sheldon Lawrence
as Ross Waters

Dorothy Brewster
as Angela Speakman

Ellen Pollock
as Mrs. Cheam

Victor Brooks
as Superintendent Leigh

Alan Tilvern
as Peter Lang

Cecil Brock
as Tony Speakman

Alan Keith
as Dr. Ian Probus

Arthur Gomez
as Sgt. Bowles

Deidre Day
as Ella