As you're about to take the elevator from the ground floor to your room on the fourth floor in the hotel where you're staying, a woman gets into the elevator on the first floor as well. You've never seen each other before. On the way to the second floor, the elevator stops and won't move any further. The two of you are now trapped together in the elevator without cell phone reception and without anything to eat or drink. Help won't be able to get you out of the elevator for 24 hours.