In order to earn her wings, potential angel Angel Buns is dispatched to Earth to help middle-aged Sidney Pertzer, who is about to commit suicide out of frustration over his sexual ineptitude and inexperience.

A shy, withdrawn female scientist invents a formula that turns her into a horny, oversexed nymphomaniac.

As the bus empties the students for their field trip to the Museum of Natural History, little does the tour guide suspect that the students are there for more than just another tour.