A mysterious, charismatic stranger attracts a cult-like following of aimless young hippies, only to reveal himself to be a vampire.

Male chauvinist Mike attempts to get an intelligent burgeoning feminist Delilah into his harem. When she resists, Mike then poses as his brother Herbert, but in the process falls in love with Delilah.

Young couple Scott and Mary are on their way to a Halloween party when their car breaks down, and they encounter a creepy castle where Dr. Frankenstein seeks to put Scott's brain in his monstrous creation. As for Mary, Count Dracula wants her for his mistress.