The Boss, also known as Murder Inferno) is a poliziottesco-noir film written and directed by Fernando Di Leo in 1973.

[2] It is the final part of Di Leo's Milieu Trilogy, also consisting of Milano calibro 9 and La mala ordina, both released in 1972.

Nick Lanzetta (Henry Silva) takes out several members of a rival crime family for his boss Don Corrasco (Richard Conte).

The enemy clan attempts retribution by kidnapping an associate's daughter, who turns out to be a nymphomaniac.

Il Boss was released in Italy on 1 February 1973, where it was distributed by Alherat.