This movie is very old, before the 2000s for sure. I'm pretty sure it's not a horror movie. All I remember is the very opening of the movie- it depicts an entire family murdered and all bloody, but sitting propped up on the couch--very, very creepy. Then, it cuts away and the movie starts, rewinding to the beginning. The family is very happy, and it leaves you guessing how they all got murdered. They make it seem like it's the dad, but I don't remember if the dad was the one who murdered them or not. Thanks in advance for your help.