
Dutch painter Jan-Van Rooyer hurries to keep a rendezvous with Jacqueline Cousteau, an elegant, sophisticated Frenchwoman, slightly his elder, whose relationship with him had turned from art student into one of love trysts. He arrives and is confronted by Detective Police Inspector Morgan who accuses him of having murdered Jacqueline. Morgan listens sceptically to the dazed denials of Van Rooyer as he tells the story of his relationship with the murdered woman. Morgan, after hearing the story, realizes that the mystery has deepened, and it becomes more complicated when the Assistant Commissioner, Sir Brian Lewis, explains that Jacqueline was not married but was being kept by Sir Howard Fenton, a high-ranking diplomat whose names must be kept out of the case.

Hardy Krüger
Jan-Van Rooyer

Stanley Baker
Insp. Morgan

Micheline Presle
Jacqueline Cousteau

John Van Eyssen
Insp. Westover

Gordon Jackson
Sergeant

Robert Flemyng
Sir Brian Lewis

Jack MacGowran
Postman

Redmond Phillips
Police doctor

George Roubicek
Police constable

Lee Montague
Sgt. Farrow

Fly By Night
Fly By Night

One Girl's Confession
One Girl's Confession

Women's Prison
Women's Prison

The Sniper
The Sniper

The Gangster
The Gangster

Big Town
Big Town

The Thirteenth Hour
The Thirteenth Hour

The Return of the Whistler
The Return of the Whistler

Pickup
Pickup

City That Never Sleeps
City That Never Sleeps

Cast a Dark Shadow
Cast a Dark Shadow

Panic
Panic