The Swiss Conspiracy is a 1976 action film starring David Janssen, Senta Berger and Elke Sommer, and directed by Jack Arnold. It was co-produced between Germany and the United States.
A Swiss bank learns that the confidentiality of several anonymous numbered accounts has been compromised and blackmail threats have been made to five holders of the accounts. They include a crooked arms dealer, who received a demand for five million Swiss francs. He refuses to pay and is shot dead. The bank is also told to pay ten million francs to keep the accounts secret.
The bank hires David Christopher (Janssen), a former U.S. Treasury official who now resides in Geneva. In the course of his investigation, Christopher talks to the four living blackmailees - beautiful Zürich resident Denise Abbott (Berger), Texas businessman Dwight McGowan (John Ireland), Chicago crook Robert Hayes (John Saxon) and Dutchman Andre Kosta (Arthur Brauss).
He identifies a number of suspects. One is Rita Jensen (Sommer), the mistress of the bank's vice-president, Franz Benninger (Anton Diffring). There is also Benninger himself as well as Korsak (Curt Lowens) and Sando (David Hess), who are out to kill Hayes and
(This is information generated from a Wikipedia article, licensed under the GNU Free Documentation License.)