I love the atmosphere you're going for, but I'm too dumb to figure out the story.
SPOILERS BELOWI may have missed some things. I figured out the booze and sedatives, I found the family photos, I found the article about the motorcycle accident, and I found the article about the cult, but I couldn't tie it all together. I couldn't tell if it was the story of one family, or a house with a series of tragedies. My best guess is that maybe the cult sacrifices happened in the house, and the next family was cursed with misfortune? Maybe the wife and baby survived the motorcycle accident, and she tried to sacrifice the baby to revive her husband? And then the player is an unrelated party investigating the house? Or maybe the wife just read about the cult and tried to replicate their ritual?