Terza ipotesi su un caso di perfetta strategia criminale

A rich man gathers together friends and relatives at the abandoned theatre he owns, but the party isn't fun for long since apparently one of them is a murderer.

In Dublin, the acid-scarred, razor-slashed corpse of a young woman is discovered in the boot of the Swiss Ambassador's limousine. The Ambassador, his family and employees all become immediate suspects. Faced with the problem of diplomatic immunity, the police officer in charge of the case brings in John Norton, an ex-Inspector known for his brutal methods, to carry out an "unoffical" investigation. While Norton develops a relationship with the Ambassdor's attractive daughter, several more gruesome murders occur...

A homicidal maniac known as the 'tail', dressed in a clown mask, raping and killing a number of girls who work in erotic phone lines. The case has been assigned two policewomen, Lorraine and Consuelo, who begins to investigate, by phone sex, where they are to interview the victim's friends. After the second telecommunications operator, is murdered, his mind and Consuelo & Lorraine to take a job at the hot line.

A man's daughter is killed by thieves during a bank robbery. Due to the incompetence of the corrupt authorities, he decides to take to law into his own hands and track down the killers.

Detective Baldassarre spends his forced exile sorting criminal records. He gets a chance to return to the line of fire when two people, an aristocrat and a worker are struck by lightning inside a fancy mansion. The incident would be relegated to freak accidents, but Baldassare's attention is drawn to the strangeness of the events and he begins to investigate.

Andrea, the only son of a rich publisher, is a neurotic young man obsessed by his mother. He is dominated by uncontrollable impulses and suicidal fantasies, while his regressive behaviour makes him lonely and frustrated. Incapable of having normal sexual relationships, he spies on his stepmother's adulterous affairs and is obsessed by Carol, a young American girl he secretly films (even when she's making love with her boyfriend), and whom he clumsily courts. Finally, Andrea wins Carol over but is still tormented by the fear of losing his own private world of memories and macabre games...

Cristina turns eighteen and leaves her bourgeois family to become a call-girl. But soon, her clients start turning up dead, their throats slashed. Who is responsible?

Oscar is trying to re-establish an affair with Sandra, a disturbed young woman. Having found her husband Fabrizio shot dead and her young son Ricky standing beside him with a gun, Sandra suffered a complete breakdown and now lives in isolation with her protective mother. The latter saved the young boy from recrimination by placing the gun in his father's hand, making it seem like he committed suicide. However, things are not what they seem...

Johan Wallenberger, a rich financier, is killed in the House of Horrors at an amusement park in Madrid. His insurance company assign Chris Buyer, one of their best agents, to investigate because a few days prior to his death, the businessman took out a million dollar life insurance policy. Chris ingratiates himself with Catherine, Wallenberger's beautiful daughter, and it emerges that she is being plagued by a blackmailer. Chris is invited to the Wallenbergers' country house and is soon the centre of attention for several attractive women. Meanwhile, the plot thickens...

Against the wishes of her Aunt Valeria, attractive Milena travels to Milan in order to secretly marry Marco Giraldi. Three years later, Milena returns to her hometown Fermo, where her husband's shoe business is in financial difficulties. Shortly afterwards, she is abducted, a valuable painting is stolen and Aunt Valeriais murdered. Two young villains, who carried out the dirty work, are then killed...

After a phone call has been intercepted (an industrialist is going to receive a huge amount of money from a foreign bank), Mafioso Luca Albanese is assigned to set up a big robbery. He and his gang (three men and three women) then hide-out in a remote mountainous region, but soon at each other's throats. Moreover, someone is killing Albanese's men one by one, leaving white paint on the victim's faces...