A Swiss bank discovers some of its clients are becoming the victim of a brilliant blackmailer. The bank's president contacts David Christopher, a former agent with the U.S. Treasury, to help discover who the blackmailer is and to foil his plot. As Christopher delves into the mystery, he uncovers a complicated web of intrigue, car chases, and shoot-outs that takes all of his wits to unravel.
David Janssen
as David Christopher
Senta Berger
as Denise Abbot
John Ireland
as Dwight McGowan
John Saxon
as Robert Hayes
Ray Milland
as Johann Hurtil
Elke Sommer
as Rita Jensen
Anton Diffring
as Franz Benninger
Arthur Brauss
as Kosta
Inigo Gallo
as Captain Hans Frey
Curt Lowens
as Korsak, Hit Man
David Hess
as Sando, Hit Man
Hans-Joerg Bahl
as Sgt. Schwand
