International terrorists attempt to kidnap a wealthy couple's child. Their plan comes unstuck when a deadly Black Mamba, sent by mistake instead of a harmless snake, escapes and the terrorists and several hostages are trapped in the boy's London home.
as Jacques Müller (Jacmel)
as Dave Averconnelly
as Cmdr. William Bulloch
as Dr. Marion Stowe
as Howard Anderson
as Ruth Hopkins
as Philip Hopkins
as Louise Andrews
as David Ball
as Det. Constable Dan Spencer
as Lord Dunning
as Sgt. Nash
as Cab Driver
as Mrs. Loewenthal
as Sampson
as Superintendent
as Constable
as Peters
as Man in 17
as Driver
as Driver's Mate
as Airline Clerk
as Constable
as Williams
as Martin
as Rogers
as Smith
as Mr Mukerjee
as Susan Stowe
as Head Waiter
as Policeman (uncredited)
as Woman in No.17
as Workman (uncredited)
as Passer-by (uncredited)