I went to see it in the theaters and have the bootleg. The ending is different, same movie though. In the end when katy goes downstairs after she stands there looking at her bf for a while, she screams and micha goes running after her, about a couple minutes later she comes back upstairs with a knife in her hand and sits down on the floor next to the bed for about 20 hours or so.

Finally her sister shows up and finds micha's dead body, she screams and runs out the house. 20 minutes after that the cops show up, as the cops are coming upstairs with the flashlights on the back room (with the attic) light turns on and then off. When they get upstairs the back room door shuts slowly, at this point katy is no long possessed (sp?), she then gets up and approaches the cops with the knife in her hand looking for micha........So the cops cap her ass a couple times, end of movie.

shits weird man