Dutch police officer Van der Valk is pulled away for a private investigation for a friend of the chief of police to find the missing junior manager. When he gets to know his woman, he is fascinated by the thought of running away with her.

Frank Finlay
as Commissaris Simon "Piet" van der Valk

Judy Winter
as Anne-Marie Marchal

Helmut Käutner
as Canisius

Hans Helmut Dickow
as Stössl

Françoise Prévost
as Arlette van der Valk

Marte Harell
as Mrs Kramer

Erich Padalewski
as Serak

Rudolf Strobl
as Tappeiner

Otto Ambros
as Portier

Emmerich Schrenk
as Cab driver