Advanced monitor handmade

I'm looking for the name of this film (see details)? - adult film trailers

Is I saw the trailer for the film, and it was long ago, but what I recall, that a group of friends (young adults or older children) were a party or sleepover, one of them falls and hits his head against something (I think it was a table), and his friends believe that he died so buried. Watch the trailer, resurrection, and I think it will be a different person, because then joined his former classmates at school and receive like a student again?

Anyway, if you could remember the title of a horror movie or thriller genre this game loosely described above, I would be grateful ...