Left for Dead (2007)

Storyline:

Left for Dead 2007 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 pleasure seekers with a machete Tommy, a party goer, 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