They discover that years ago, the town was run by a rigid, superstitious cult. They had labeled a young girl, Maya, as a "shrap" (curse) because of her psychic abilities and burned her alive in the town’s temple to "purify" the land. Maya’s rage split her soul: the innocent part became Sia, while the vengeful part created this nightmare dimension to punish the villagers.

Anita and Sia finally drive home. The sun is shining, and they walk back into their house. However, back in the city, Anita’s husband stands in the same living room, but the house is cold and empty. He cannot see them. Anita and Sia are home, but they are still wrapped in the eternal fog of Shantigiri. To help me flesh this out further, let me know:

As the sirens wail, the town "peels" away into a rusted, bloody version of itself. Anita must navigate a haunted hospital filled with faceless, sari-clad nurses who move only when they hear breath. She eventually finds the cult’s descendants hiding in an old church, led by the fanatical Maaji.