Left for Dead (2007 horror film)

Left for Dead is a Canadian horror film and the debut film for Mindscape Films, described by director Christopher Harrison as an 80s slasher flick, similar to John Carpenters Halloween series.

The students of a Canadian town throw wild parties full of drugs, sex, and lost inhibitions every year at Halloween. But one Halloween, an uninvited guest comes for a visit. He wears a Halloween mask while he decimates the pleasureseekers with a machete. Tommy, a partygoer, witnesses the murder of his friend Freddy, but neither the police nor friends believe him, and the corpse has vanished. Tommy harbors a terrible suspicion as the very bloody spectacle continues.

Source: Wikipedia