Alberto Oliver, an unsuccessful pulp novelist, is attacked by alien mutants when he comes back from visiting his lover Carol. Soon he finds himself chased by a flying saucer that tries to abduct him and take him to a distant planet in an anti-matter galaxy.

A mad doctor performs a head transplant on an injured criminal, which results in him being even more dangerous and murderous than before.

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 special detective is sent to Lisbon in order to investigate a series of murders. After looking into the murders, our hero realises that they are somehow linked to an illegal drug smuggling operation and so sets about looking into that in order to solve the murders and stop the smuggling from taking place.

Former Countess Clair and Professor Gruber conduct occult research in castle basement of Count Victor, re-animating people to kill for them.

Commissioner Mendoza must join forces with the honorable civil guard, to stop the activities of a network of drug traffickers with international contacts that intend to act in Spain.

Lynn lives with her husband Arturo on an island off the coast of Spain. Everything looks normal except for the fact that Arturo suffers from a disease that makes him sexually impotent. Frustrated, Lynn has an affair with a local youth, and she soon discovers that she is pregnant. She needs to get rid of the baby very quickly so that Arturo doesn’t know she’s cheating on him, but abortion being illegal, she doesn’t know where to go. There is this old local woman who aborts young women, but the risk taken on life is big, as hygiene conditions are very low. There is also this strange doctor, a friend of Arturo, but he’ll agree to do the operation only if Lynn has sex with him.

A group of American tourists is traveling through Spain when two of them are murdered by a mysterious serial killer who removes an eyeball from every one of its victims. The tour presses on as the murders continue, with the travelers and the police trying to deduce which one of them is the killer.