“Squatter” (* out of four) was an embarrassingly awful horror thriller about various friends at a party (Grits Carter, Russ Skains, Anne Nichols Brown) who are stalked and slashed by a psychotic killer who is obsessed with wrestling and machetes. Where the hell are Jason and Michael Meyers when you really need them? This painfully lame movie seems shot with someone’s camcorder and scripted with a crayon. “Squat” would have been a better title for this utter timewaster.