A composer (Laurence Payne) is stuck in a middle-class marriage and finds that his affair with his wife's half-sister (Jane Griffiths) has resulted in a pregnancy. When his wife refuses to give him a divorce he hatches a murder scheme that is too clever by half.
as Norman Martell
as Helen Martell
as Peggy Hill
as Dr. Peter Murdoch
as Supt. Ross
as Simmons, the Producer
as Miss Potter
as Mrs. Booth
as Marshall
as Cinema cashier
as Cleo
as Rehearsal Pianist (Uncredited)
as Cinema sales girl (uncredited)
as Det. Sgt. Fred Smith (uncredited)
as Patrol car policeman (uncredited)
as P.C. Williams (uncredited)
as Sleeping Man in Theater (uncredited)
as Detective Examining Tape-Recorder (uncredited)
as Cinema manager (uncredited)
as Det. Sgt. Carter (uncredited)
as Detective / Fingerprints Officer (uncredited)
