A doctor at a run-down psychiatric hospital is offered a large sum of money to shelter a new patient. Soon the place is full of suspicious and secretive characters, all apparently international secret agents trying to find out who and what the patient is.
Curd Jürgens
Alex
Peter Ustinov
Michel Kiminsky
O.E. Hasse
Hugo Vogel
Sam Jaffe
Sam Cooper
Paul Carpenter
Col. Howard
Véra Clouzot
Lucie
Martita Hunt
Connie Harper
Gérard Séty
Dr. Malic
