"When his best friend is murdered inside a London dancehall, a cab driver and his girlfriend involve themselves in the investigation and discover a major criminal operation hiding behind the club's friendly facade."
Richard Attenborough
as Ted Peters
Sheila Sim
as Joy Goodall
Barry Jones
as E. J. Gregory
Barry K. Barnes
as Paul Baker
Judy Kelly
as Toni Masters
John Warwick
as Det. Insp. Carter
Garry Marsh
as Det. Sgt. Murray
Diana Dors
as Annette
Bill Owen
as Dave Robinson
Cyril Chamberlain
as Henchman "Sniffy"
Peter Croft
as Johnny, bartender-henchman
Danny Green
as Henchman Sid
Norman Shelley
as Stage Door Keeper (uncredited)
Bartlett Mullins
as Club Barman (uncredited)
Patricia Dainton
as Pam (unconfirmed)
Dirk Bogarde
as Policeman (uncredited)
Joy Harington
as Friendly Barmaid (uncredited)
John Salew
as Pogson
Johnnie Schofield
as Fred (uncredited)
Harry Terry
as Man Outside Taxi Garage (uncredited)
Dennis Wyndham
as Sam (uncredited)
Jon Pertwee
as Police Constable (uncredited)
Benjamin Frankel
Original Music Composer
Eily Boland
Editor
James A. Carter
Producer
John Paddy Carstairs
Director
Brock Williams
Screenplay
Peter Fraser
Story
Andrew Mazzei
Art Direction
Reginald H. Wyer
Director of Photography
George Turner
Makeup Artist
Ida Mills
Hairdresser
H.C. Pearson
Sound Recordist
George Burgess
Sound Director
Dorothy Sinclair
Wardrobe Supervisor
Harry Moore
Bernard Lewis
Camera Operator