Raving Maniacs (2005)

Zombie horror. It's Hallowe'en night in Providence,Rhode Island and at the biggest nightclub in New England there's a dawn-to-dusk rave going on. When a strange new drug is introduced into the party,the partygoers begin a groteque transformation into savage and libidinous maniacs. Before long,the party has turned into a bloodbath - but what will happen when the infected kids escape into the outside world?