Il Boss
| Il Boss | |
|---|---|
| Italian film poster | |
| Directed by | Fernando di Leo | 
| Screenplay by | Fernando di Leo | 
| Based on | Il mafioso by Peter McCurtin | 
| Produced by | Armando Novelli | 
| Starring | |
| Cinematography | Franco Villa | 
| Edited by | Amedeo Giomini | 
| Music by | Luis Enriquez Bacalov | 
| Production company | Cineproduzioni Daunia 70 | 
| Distributed by | Alherat | 
| Release date | 
 | 
| Running time | 111 minutes | 
| Country | Italy | 
| Box office | ₤774.172 million | 
Il Boss (En. The Boss, also known as Murder Inferno) is a poliziottesco-noir film written and directed by Fernando Di Leo in 1973. 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.