Return of the Living Dead 5: Rave to the Grave

In this sequel to 1985's Return of the Living Dead, a bunch of horny teens discover that their new designer drug is actually a chemical that turns humans into flesh-eating zombies. Unfortunately, they don't make this discovery until they're in the middle of an enormous outdoor dance party, where the wild costumes and chemically induced shenanigans make it difficult to tell who's a zombie and who's simply having a good time. Although it shares plot points, characters, actors, and crew with R...