No one ever knows what I'm talking about when I try describe this😭

I watched this really strange sci-fi/psychological thriller like last year about a couple in this house and people kept showing up and refusing to leave and then the wife had an immaculate conception and everyone started worshipping the baby and it was like time was going super quick and everyone was progressing through the ages?? Like the people were acting like they were back in Jesus' time when the baby was born and then pretty sure it ended with like a modern war in the house it was genuinely so weird and I can't find it anywhere lol