Juan Piquer Simón

After a chance encounter with a mysterious couple claiming to be old friends, Andrés and Ana are invited to spend the evening at a beautiful, secluded old villa. As the night winds down, they begin to sense that there are some rather strange things going on around them and, after agreeing to sleep over, find themselves unwittingly pulled into a series of bizarre sexual encounters which they slowly discover are part of a horrifying Satanic ritual designed to make them slaves to the Prince of Darkness!

A frustrated Boston detective searches for the maniac responsible for mutilating a number of university coeds.

A 19th-century expedition to the Earth's core reveals primordial wonders, prehistoric monsters and a subterranean civilization that may convey the greatest discovery of all.

People are dying mysteriously and gruesomely, and nobody has a clue what the cause is. Only health worker Mike Brady has a possible solution, but his theory of killer slugs is laughed at by the authorities. Only when the body count begins to rise and a slug expert from England begins snooping around does it begin to look like Mike had the right idea after all.

Paul, a mercenary in Africa, decides that he can no longer work for the Organization because of their brutal tactics. But the evil Organization refused to release him, and Paul finds that he must fight his way out.

A young European boy living in San Francisco is reluctant to marry his long-term girlfriend because he wants to travel around the world first. His wealthy uncle agrees to send him on a global expedition aboard his ship, but en route the boy and his travelling companion are shipwrecked on a remote island, populated by countless prehistoric creatures as well as gold-hunting bandits.

An experimental submarine with a very experienced crew, the "Siren II" is sent to find out what happened to the "Siren I" after it mysteriously disappeared in a submarine rift. Things go awry when they begin to find things that shouldn't be there...

Kronos, hero of a distant galaxy, tangles with mad scientist Gulik over the fate of mankind.