“Party Crasher” (*1/2 out of four) was an amateurish horror show in which a fraternity house with assorted college losers and stoners (Ashton Moio, Jacob Artist, Jayson Blair, and others) throw a party but unbeknownst to them- a psychopath has mysteriously and elusively evaded their ranks. Bad acting and dumb writing make this a party well-worth not crashing. Some marginal stylish touches from director Brant Sarsen in the final third save this from being a complete loss.