A mad scientist (Donald Pleasence) crosses plants with people, and the results wind up in a sideshow.

When several young girls are found dead, left hideously aged and void of blood, Dr Marcus suspects vampirism. He enlists the help of the Vampire Hunter. Mysterious and powerful, Kronos has dedicated his life to destroying the evil pestilence. Once a victim of its diabolical depravity, he knows the vampire's strengths and weaknesses as well as the extreme dangers attached to confronting the potent forces of darkness.

A young London couple who have trouble remaining faithful to each other visit Italy, where the husband's cheating ways come to a head when the secret lover of his equally cheating wife turns out to be a potential business partner.