Following a triple professional hit a U.S. agent, Paul Sherman, arrives in Amsterdam to investigate a heroin smuggling ring. He finds a city rife with drugs and a police force unable or unwilling to do much about it. With his incognito female fellow agent, Maggie, the American is soon stirring things up.

Sven-Bertil Taube
as Paul Sherman

Barbara Parkins
as Maggie

Alexander Knox
as Colonel De Graaf

Patrick Allen
as Inspector Van Gelder

Vladek Sheybal
as Meegeren

Ania Marson
as Astrid Lemay

Penny Casdagli
as Trudi

Peter Hutchins
as The Assassin

Drewe Henley
as Jimmy Duclos

Henny Orri
as Herta
CinemaSerf
At the start of this, I did wonder what on earth was going on. Sven-Bertil Taube (a sort of Jon Voight lookalike) was an odd choice to lead. Hardly an household name, quite possibly not even in his native Sweden. Anyway, he arrives in Amsterdam where he doesn't even make it out of the airport before...