A man is arrested and condemned to five years in jail for robbery. After serving his term, he is out for revenge on the gang members he considers were to blame for his arrest. The prize for this deadly fight is a large cache of diamonds.

Nick Hezard, a young con man, wants to avenge the death of a friend of his and organizes a swindle trying to cheat Robert Turner, an American businessman he thinks responsible for his friend's death. He succeeds in getting a hundred thousand swiss francs and uses them to carry out the second part of his plan.

A young Sicilian is swindled twice, but ends up rich; a man poses as a deaf-mute in a convent of curious nuns; a woman must hide her lover when her husband comes home early; a scoundrel fools a priest on his deathbed; three brothers take revenge on their sister's lover; a young girl sleeps on the roof to meet her boyfriend at night; a group of painters wait for inspiration; a crafty priest attempts to seduce his friend's wife; and two friends make a pact to find out what happens after death.

A rude Roman policeman Nico Giraldi and an English detective team up in search of a gang that has carried out an enormous fraud against the Lloyd's of London.

Paul, Joe and Louie are three young men from good families who decide to go on a bloodthirsty and pointless crime spree, much to the dismay of paul’s girlfriend (Eleonora Giorgi) and the local police commissioner (Tomas Milian). the group starts by robbing a gas station where paul guns down three innocent bystanders. When they later decide to rob a bank and a grocery store, paul ends up killing more people. It isn’t long before the entire police force is looking for the three criminals, who pick up the girl and hightail it to the Swiss border, killing everyone in their path.

A gang of thieves are robbing luxury apartments in Rome, but after emptying the villa of the wealthy Mr. Douglas, the thieves are beginning to die.

At the Nato di Bagnoli headquarters, Tony, who lives with US Army officer Janet, works awkwardly and uncomfortably with modern equipment, which is also found at home. Strongly frustrated, Tony decides to return to the Naples neighborhood where he has always lived.

Tony, a mob loan collector, is dissatisfied with his station in life. Though he dreams of one day being rich, he is stuck with the dead-end job of beating up borrowers who fall behind in their payments. After meeting up with Napoli, another mob enforcer who's just been fired from his job, the two hatch a plan. Together, they will con mob boss Manzari out of a fortune, after which they can retire and live in luxury. Manzari, however, is not about to let them go so easily.

Mario Gastaldi, a lawyer with no clients and no money, agrees to be a negotiator in a deal on stolen paintings, between the boss Peseti and the engineer Farnese, who plots kidnappings unsuspectedly. After he cashed from Farnese three hundred millions of lire to deliver to Peseti, Mario lets money be robbed by four pickpockets, which he is naturally in cahoots with and which he will share out it with. Money cannot be used since it comes from a kidnapping and it was marked. The lawyer will be able to make the boss get arrested.

Nico Palmieri is a police inspector who battles a criminal gang terrorizing 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.