The best Roberto Dell'Acqua’s thriller movies

Inspector Rizzo is accused of drug trafficking. In order to clear his name he has to find out who is the person, from a Mafia ring, who has infiltrated his police department.

Drug use in the city of Rome is at an all-time high. Children score from dealers in front of their schools, mules waltz straight through airport security, and Interpol's main man, Mike Hamilton (David Hemmings), is at his wits' end. Fed up to the back teeth with the local police force's incompetence, his only hope is to rely on one of his own men, Fabio (Fabio Testi), an officer so deep undercover that no-one but Hamilton knows who he really is. Even as Fabio gains the trust of cartel leader Gianni (John Loffredo), however, the dealers are edging ever closer to the truth, and when his cover is blown, the hunter becomes the hunted as Fabio finds himself alone in a desperate fight to survive.

Inspector Betti (Maurizio Merli) is transferred to Naples and immediately after his arrival receives a warm welcome from The Commandante (Barry Sullivan), the city's crime lord. Betti then goes on a personal mission against corruption and organized crime, and tries to force the syndicate out of town with any means necessary.

Nico Palmieri is a police inspector who battles a criminal gang terrorising a sleepy Italian town, extorting cash from the local merchants. With the threat of violence, no one dares to act, except for a restaurant owner who is forced by Palmieri to tell the truth. As a result, the owner's young daughter is raped, and the violence continues. Discovering that the gang is associated with drug dealers, Palmieri is forbidden to continue investigating his case by his superior - so he takes matters into his own hands. Palmieri recruits a couple of men who have become victims of the gang and sets out for a bloody revenge.