An actor is approached by a group of men offering him a job posing as an executive at a diamond exchange to help them pull off a robbery.
Richard Harrison
as Arthur Lang
Adolfo Celi
as Mr. Bernard
Margaret Lee
as Evelyn
Gérard Tichy
as Max
Antonio Casas
as Col. Jenkins
Eduardo Fajardo
as Mr. Ferrick
Andrea Bosic
as Mr. Van Doren
Livio Lorenzon
as Miguel
Mary Arden
as Dorothy
Vito Fasano
as Secret Agent (uncredited)
