A young man returns from Rome to his sister's satanic New York apartment house.
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, 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, 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, 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.
Tullio Hermil is a chauvinist aristocrat who flaunts his mistress to his wife, but when he believes she has been unfaithful he becomes enamored of her again.
Spain, occupied by the French. Zorro, the intrepid swordsman, has an accident. As a result, his friend, Father Donato, is forced by oath to find a temporary replacement for him.
Macedo, bloodthirsty leader of a gang of Confederates shoots the captain of the Northerners, Jeff Mallighan, known as "Fast Hand", shattering his right hand. Jeff, wounded on the ground, could not see the face of the villain, but his silver spurs have stuck in his mind as well as his unique gun. Some time after this event Macedo continues with his misdeeds, however, a mysterious horseman dressed in black will stand in his way.
Faced with a broken marriage, a woman decides to try to rekindle incestuous relationship with her younger sister, who is married to a wealthy older man.
Beautiful PR woman, Maria finds herself trapped in the home of the sinister and troubled Dr. Sayer, where she is subjected to a series of increasingly bizarre, terrifying, and degrading sex games. Sayer admits that he has murdered several women after the same ordeal, always killing them at the point of orgasm. But all is not what it seems, and through a series of twists and turns, the whole situation is slowly turned on its head.
Anna plays the personal secretary of a rich industrialist who falls in love with her boss' daughter's leftist boyfriend, Carlo. Anna pretty much severs her ties with her boss (who she also had romantic moments with) and after she moves in with the college student Carlo she attempts to provide for both, but soon fails in finding job opportunities and sinks into the sleazy world of drugs and prostitution. Carlo's right wing brother demands Carlo begins his relationship with daughter of the powerful businessman in order to guarantee financial freedom for the rest of his life.
A detective gets involved with the beautiful daughter of an old friend. The daughter turns out to be a jewel thief, who in turn gets the detective involved in a caper in Austria.
International man of mystery Diabolik and his sensuous lover Eva Kant pull off heist after heist, all while European cops led by Inspector Ginko and envious mobsters led by Ralph Valmont are closing in on them.