Stranded at a rest stop in the mountains during a blizzard, a recovering addict discovers a kidnapped child hidden in a car belonging to one of the people inside the building which sets her on a terrifying struggle to identify who among them is the kidnapper.
This movie contains 33 potentially triggering events.
The character of Lars is someone with a developmental disability. I don’t think the actor shares that disability, or at least I didn’t see any evidence of that while researching
I’d argue that the rehab center is carceral enough to count as incarceration. The protagonist has to use an emergency exit, break into a car, and speed away in order to get out