Dutch police inspector Piet Van der Valk finds himself repeatedly crossing paths wiht the beautiful yet troubled Lucienne Englebert, the daughter of a famous conductor recently killed in a car accident. Whern the maverick inspector investigates the seemingly senseless killing of a man in Amsertdam, will Lucienne turn up again?
Commissaris Simon "Piet" van der Valk
Lucienne Englebert
Solange de Winter
Hoofdcommissaris Samson
Mankiewicz
Stam
Royaard
Arlette van der Valk
Englebert
Bernard Neefs
(voice) (uncredited)