Wealthy Peter Sterling and his younger wife Christine have an existence of little excitement so when a stranger comes into their lives, she is intrigued. An affair turns into much more and they are soon plotting to rob Peter of a precious gemstone.
as Peter Sterling
as Christine Sterling
as Detective Mills
as Doug Mitchell
as Sibyl Anderson
as Miss Stevens
as Young Man
as Mrs. Coolidge
as Mum
as Junior Secretary
as Freddie
as James
as Sir Henry
as Doug's Girl
as Old Lady
as Station Assistant
