

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.
Stunts
That speedboat chase through Amsterdam canals is genuinely unhinged.
Production
Grubby location shooting captures 1970 Amsterdam before it got pretty.
Director
Geoffrey Reeve
Trivia, insights & behind the scenes
Don Sharp took over directing duties from Geoffrey Reeve mid-production, which explains the tonal whiplash between talky procedural and bonkers action.
Based on Alistair MacLean's novel, this was part of a brief 1970s wave of 'gritty European drug thrillers' that aged like milk left in a canal.