It's a Jewish custom to watch over a newly deceased person so demons do not enter the body but this movie asks what If that body already has a demon that is looking for a new soul to hang with? This is another slow tension building burn of a story that really had me creeped out at times...and I am a hardened horror fan. I've also seen many catholic flavored demon/possession things it was honestly refreshing to see a Jewish take on the old trope.