Bette Davis is Madame Sin, a sinister-looking, totally evil, half-Chinese woman who indulges in endless machinations. Ensconced in a Scottish castle that is packed with an array of spy gadgetry, she runs afoul with counter spy, American C.I.A. Agent Anthony Lawrence (Robert Wagner), who is out to counter her plots for control of a Polaris submarine.
Directed By
David GreeneWritten By
Lou Morheim, Barry Shear, Cast of Madame Sin
Bette DavisMadame Sin
Robert WagnerAnthony Lawrence
Denholm Elliottmalcom De Vere
Gordon JacksonCommander Cavendish
Dudley SuttonMonk
Catherine SchellBarbara
Paul MaxwellConnors
David HealyBraden
Alan DobieWhite
Al ManciniFisherman
Paul YoungNaval Driver
Roy KinnearHolidaymaker
Charles Lloyd PackMr. Willoughby
Burt KwoukScarred Operator