Quick recap
Margot and her friend Chris, a cameraman, want to make a documentary about her past. Her mother, Sarah, left her at a hospital and vanished. Through a genetics site they meet Samuel, an Amish relative, who leads the crew to Beiler Farm, where Sarah was born. Her grandfather, Jacob, is the patriarch. There is a little girl with a doll named Sarah, a spirit in her mother's old room, and a ritual with a two-headed goat. Margot learns Jacob and Samuel already knew who she was and staged her visit. The group finds out the farm's people are not Amish and that a demon, Asmodeus, passes from mother to daughter. Margot kills her possessed mother and the farm descends into chaos. At the end, a possessed Samuel makes two police officers take their own lives.