Sleepy-eyed nice guy Lee Ritter and his vapid, but pretty wife, Susan accept the invitation of mysterious vixen Diane LeFanu to visit her in her secluded desert estate. Tensions arise when the couple, unaware at first that Diane is in reality a centuries-old vampire, realize that they are both objects of the pale temptress' seductions.
A reporter who has had an affair with the daughter of the U.S. President is sent to Hungary. There he is bitten by a werewolf, and then gets transferred back to Washington, where he gets a job as press assistant to the President. Then bodies start turning up in D.C. . . .
An American tourist, a youth gang leader, and his troubled sister find themselves trapped in a top secret government facility experimenting on children.
An alien, buried in King Tut's tomb, terrorizes a college campus.