Until Dawn is based on the hit PlayStation video game of the same name, but it's not a direct adaptation. In fact, it's quite the opposite, with a Groundhog Day-style time-travel device used to pit a group of survivors against a series of increasingly terrifying threats.

In a cabin in the woods (where else?), they face various horror movie monsters and even drinking water that makes them spontaneously combust. However, each time they die, the group wakes up, a little worse for wear, and the day starts all over again.

Thirteen nights in, Until Dawn's lead, Clover, confronts Dr. Hill—Josh's mysterious psychiatrist from the game—and learns that everything that's happened stems from her damaged psyche. It's not entirely clear how, but Hill hopes to eventually reduce them all to their most primal instincts, turning them into wendigoes.

Clover slides his mug under a drip from the roof,...