Thale is an atmospheric horror film from Norway based on the huldra from Norwegian folklore.

A pair of crime scene cleaners stumbles across a hidden room containing Thale, a huldra who holds the appearance of a woman. The first two-thirds of the movie are the pair unraveling the mystery of who and what Thale is and why she is in this hidden compartment.

These two-thirds are fantastic. The world building is fun and pulls from the folklore, and the mystery of it all ramps up and up. We don't know that Thale is there, and once we find that out in a spectacular fashion, we slowly begin to unr... read the rest.