A trip to the cinema becomes a real horror show...When Lucy Carlton wakes up in the cinema with no memory of who she is, she finds herself at the centre of a massacre. Trapped in the old theatre, she thinks she is the only survivor.She believes she has found the killer when she encounters Ben Harris trying to break out of the building, but he can't remember who he is either. With suspicion on both sides, they try to work together to remain hidden from the raging beasts that are roaming the halls.As tensions rise, Lucy begins to question how much she can trust Ben. She soon discovers that Ben isn't all she needs to worry about when her own survival instinct becomes frenzied, and the real monsters begin to emerge.