A professional killer is lured into a deadly double-cross when he agrees to assassinate a Mafia kingpin.

Yul Brynner
as Peter Marciani

Massimo Ranieri
as Angelo

Barbara Bouchet
as Anny

Martin Balsam
as Commissario

Giacomo Furia
as Brigadiere Cannavale

Sal Borgese
as Vincent

Loris Bazzocchi
as Pasquale

Rosario Borelli
as Gallo's henchman

Luigi Bonos
as Peppiniello

Renzo Marignano
as Doctor