[1] In this movie Tomas Milian plays for the first time Sergio Marazzi a.k.a.

"Er Monnezza", a role that he later played several more times, in Lenzi's Brothers Till We Die (1978, a sort of sequel of this movie), in Destruction Force by Stelvio Massi (1977) and, with slight differences, in Uno contro l'altro, praticamente amici by Bruno Corbucci (1980) and in Francesco Massaro's Il lupo e l'agnello (1980).

Commissario Antonio Sarti knows that time is running out on the victim and takes desperate measures.

He secretly organises a prison escape for petty crook Sergio Marazzi.

By using Marazzi's insider knowledge of the criminal milieu Sarti detects kidnapper's hideout.