A young woman named Arletty (Marianna Hill) moves back home to find out what happened to her estranged father an artist However as she arrives in the California beach house she runs into some decidedly odd behavior.
Kroft, a legendary vampire, returns from sleep. Kroft attacks a couple in a graveyard, raping the woman. The child born feeds only on blood from his mother’s breast.
The film tells the story of a psychiatrist, Dr. Cross, (Vincent Price), who is treating a young woman, Janet Stewart (Anabel Shaw), who is in a coma-state, brought on when she heard loud arguing, went to her window and saw a man strike his wife with a candlestick and kill her. It also stars Lynn Bari as Dr. Cross’s nurse/lover, Elaine Jordan.
Mineralogist Paul Carlson (Chase Cordell) is struck by a lunar meteorite while observing a meteor shower. Lodged in his brain, the meteorite causes him to transform into a strong and vicious lizard whenever the moon comes out.