Angelo Russo, a sixteen year-old girl, is found dead in a river, having been fatally violated with a large blunt instrument. Inspector Di Salvo is assigned to the case and focuses his investigations on St. Theresa's, the exclusive school where Angelo boarded. Three of the murdered girl's classmates, Franca, Paola and Virgina (who call themselves "The Inseparables"), receive threatening poems from an individual using the name "Nemesis". Bizarre "accidents" start to befall the girls: Franca is injured when someone causes her horse to bolt and Virgina nearly breaks her neck on marbles left at the top of a staircase. But Di Salvo is determined to find the killer, even if it means using unorthodox methods. He is aided by Angelo Russo's little sister Emily, whose helpful clues lead to a boutique owned by a dubious character and a vice ring where "rich influential men pay well for teenage favours" ...

A group of women are kidnapped by guerrillas and brought to a jungle brothel where they are forced to work as prostitutes for the soldiers. Those who refuse to cooperate are decapitated by the cruel, sadistic wardress of the camp, who is privately interested in some of the women herself.

Onion Jack has bought a piece of land on which to settle, but the property is still in possession of the orphans of the original owner and is coveted by the local oil baron.

Spanish crime film.

Crime film.

In medieval France, traveler Pygar tells he-man Karzan (Maciste in the French version) of his recent journey to a place called Antigua, and of its entire community of Amazons promising undreamed of sexual satisfaction to any man who comes upon them. More importantly, Pygar tells of a fortune in gold. Karzan/Maciste, is persuaded to undertake the journey in search of riches, unaware that Pygar is in collusion with the Amazon Queen to actually deliver Maciste as a slave stud to help rejuvenate the race.

According to legend, a group of women escaped from Atlantis just before the destruction of the continent. They took refuge on a mysterious island, and founded a kingdom. Men who dared approach the island, were devoured by these sexually voracious Atlanteans, and thus they were called "gobblers".

Derek, a handsome young Englishman, begins seducing the local women of a Spanish seaside town, only for a murderer to start picking them off one by one.

A girl arrives from London to visit her estranged relatives in a remote castle for the reading of her father's will. After a while she discovers that they are all in fact dead and her decision to live with them turns into a nightmare. Unable to leave she's drawn into a macabre underworld through visions of nude satanic rituals and her own impending sacrifice.

A nightclub singer is haunted by the ghost of her late father. The dead man summons her through a mirror, forcing her to commit a series of violent crimes.

Crime film.

Some kind of sadist, but not human, is murdering people. A doctor is convinced that the killings are the evil workings of a reclusive odd baron who died many years ago.