What happens when you find out your world isn't yours? This is the case for a young woman named Sara, who upon returning home from a dentist's appointment recieves a very strange call from her trusted neighbor. When he asks whether or not she took a cab to get to the dentist, suddenly a memory cap is unlocked, causing the truth to spill out into her mind. When she sees the true face of who she's spent the day with, the horror begins.