A mercenary is hired by the FBI to track down a powerful recluse criminal, a woman is also trying to track him down for her own personal vendetta.

Sophia Loren
as Adele Tasca

James Coburn
as Jerry Fanon / Eddie

O. J. Simpson
as Catlett

Eli Wallach
as Sal Hyman

Anthony Franciosa
as the doctor Charles Félix

George Grizzard
as Leo Gelhorn

Vincent Gardenia
as Frank Hull

Victor Mature
as Howard Everett

Billy Barty
as Dominic Carbone

Peter Savage
as Lawyer