Open Grave (2013).   7 horns up out of 8. The dude from District 9 and Elysium wakes up in, you guessed it… an open grave, dead bodies all around.   He can’t remember a damn thing.  Must have been some party.  Ha.   Mute girl helps him out of mass grave, they find a house and the people there can’t remember anything either. Oh no, what happened? That’s the point of the whole movie, keeps you guessing! Good set up, good plot, good acting, some creepy jump scares. Not how either of us would want to wake up in the morning, in a pile of dead people… so we liked it!  VioletHör and Kevin131 both give it a syringe worthy 3.5 horns up each.