Grim

A group of college friends' Thailand adventure turns deadly when they become trapped in submerged caves with a dangerous predator. As oxygen runs low, past conflicts emerge in their desperate fight for survival.

When their plans for a nature trip go awry, Polly and boyfriend Seth decide to check into a motel. On their way, they're carjacked and kidnapped by low-rent crooks Dennis and Lacey, who take the victims and their SUV to a nearby gas station. Along the way, they encounter an increasingly terrifying horde of parasites, and if any of them intend to survive, they'll have to outsmart the deadly organisms.

As an evil takes over the world beyond their front doorstep, the only protection for a mother and her twin sons is their house and their family’s protective bond.

On the trail of a missing girl, an ex-cop comes across a secretive group attempting to summon a terrifying supernatural entity.