Porno Holocaust (1979)

Porno Holocaust (1979) is that rare breed of hybrid, part bloody slasher film and part explicit hardcore porno film. Two great tastes that go great together, as proven here by one of the few who can balance such a heady brew, Italian smut master Joe D'Amato. The movie centers on a group of young, attractive scientists, such as a biologist played by Lucia Ramirez, who investigate an island with mysterious radioactive monsters. But before they go the group cuts loose, one with lesbianism, another with a threesome. Once they reach the island they discover a radioactive killer who preys on the group, then murders them off one by one, which is a neat analogy to the fate shared by viewers' sperm.