A chance for revenge brings a hit man out of retirement in this noir directed by genre specialist Antonio Margheriti (aka Anthony M. Dawson).

Sal Leonardi is a well-connected American Mafioso who, while vacationing in Naples, visits a racetrack and is persuaded by good natured tout Angelo (Massimo Raniei) to put his money on a long shot.

Back in New York, Leonardi's partners are eager to even the score against Gallo, and they approach Peter Marciani (Yul Brynner), a former hired killer who retired after the traumatic murder of his brother.

[2] According to Margheriti's friend Giacomo Furia, the character actor playing the Commissioner's assistant in the film also co-scripted it.

"[1] From retrospective reviews, AllMovie stated that the film "isn't afraid to play broad, and as a consequence it frequently feels more silly than suspenseful" and that "Margheriti has the good sense to keep the story moving forward at all times no matter what, and for all its faults it's an entertaining bit of European crime fare.