Was this supposed to be a horror comedy?
The one scene that tipped it off is when the jealous girlfriend stops to yell at the killer and he chops her hand off.
Her hand gets cut off and she goes, "Holy sh.. my f..... hand" Then she looks as the camera, tilts her head and screams. That was either good comedy or horrible acting and the director let her get away with it.
Though to be honest not much else in the movie seemed to be going for any real type of comedy. The goth girl and the girl she meets are doing a little comedy, but again it could just be bad acting and dialog.
Poor Danny Trejo does the scary voice of the killer. He's done some great roles so at least it's only his vocals in this thing.