12 in a Box

At a school reunion dinner in a remote country mansion, a dozen people are invited to stay on the estate for 96 hours to collect a million pounds each, with Robert Cargill's character Alan Hayward being among them. As they try to survive the isolation, they face unexpected challenges, including a participant who drops dead on the first day. With the clock ticking, the group must work together to make it through the next 96 hours and claim their prize.