Freakdog

Freakdog is a 2008 horror film by Paddy Breathnach, that originally went under the title Red Mist.

The students, not wanting to be involved or else risk their futures for their crime, abandon his body on a road in front of the hospital and drive off as fast as they can, hoping someone will come across his body and help him. When they learn about his condition being fatal, one of the students Arielle Kebbel, attempts to revive him using an experimental drug. The result has horrible and unintended consequences which leads to out of body experiences which Freakdog inflicts on the students who first poisoned then abandoned him. To exact vengeance, he possesses their bodies and through them kills, framing them for murdering each other, while they desperately try to find a way to stop him.The film received a limited cinema release and reviews of the film were generally poor. Rotten Tomatoes gave it onlybased on twelve reviews. ........

Source: Wikipedia