In the film, Helen (Laure Dechasnel), a married woman, leaves Paris for Zurich after breaking up with her lover. Near the border, a fellow passenger, mistakenly takes her passport. This sets up a situation which plunges her into the midst of international intrigue, a violent struggle between multinational corporations abetted by national secret agencies. This production features such international stars as Joesph Cotten,
Donald Pleasence,
Dennis Hopper and
Bruno Cremer. ~ Clarke Fountain, All Movie Guide