When Joe Valachi has a price put on his head by Don Vito Genovese, he must take desperate steps to protect himself while in prison. An unsuccessful attempt to slit his throat puts him over the edge to break the sacred code of silence.

• De Laurentiis Intermarco S.p.A.
• Euro-France Films
• Charles Bronson
• Lino Ventura
• Jill Ireland
• Walter Chiari
• Joseph Wiseman
• Gerald S. O'Loughlin
• Amedeo Nazzari
• Fausto Tozzi