When a lavish New Year's Eve gala at the historic Merriweather Hotel turns deadly, an eclectic group of guests find themselves trapped in a snowbound nightmare of suspicion and secrets. Among them is the sharp-witted event planner, portrayed by Taylor Anne Danehower, whose evening unravels as she becomes an unlikely investigator. With a blizzard cutting off all escape, every guest becomes a suspect, from the charming but enigmatic businessman James Chrosniak to the hotel's formidable owner Nancy Harding and a collection of attendees, including Haley Lohrli, Edina Loskay, Margo Parker, Sean Pablo, and John Ryan McLaughlin, each hiding their own motives. Directed by Danny J. Boyle from a script by Alyssa Kramer and Troup Wood, this tense thriller weaves a classic whodunit through the opulent, isolated corridors of the Merriweather. As alliances shift and hidden agendas surface, the search for the killer becomes a desperate race against time, where the greatest danger may come from trusting the wrong person.