What I can remember is that the detective was working on a case about a serial killer. They get a DVD in the mail which they thought was of their daughter? Maybe a recital? The daughter ends up watching it and its of the serial killer cutting someone up. The parents tell her it was a fake movie and the people who made the DVD didn't know how that happened? I think they find the place where he cut them up in a factory? I also think this movie accrued around 2007-2012? Please help my whole family can't remember.