The Midnight Knock:

Eight strangers, each with a dark past, find themselves trapped in a remote Texas motel. When one of them is murdered, the eccentric motel owners issue an ultimatum: identify the killer by midnight, or a hungry, ancient evil lurking in the desert will claim them all. As time runs out, alliances crumble, and hidden truths emerge, forcing the guests to confront both external threats and their own inner demons.