A year after being mysteriously dumped by his girlfriend Olivia, Conrad takes a box of her mementos to his self-storage unit only to be trapped on the top floor in a twisted game of cat-and-mouse with a knife-wielding killer.

A year after being mysteriously dumped by his girlfriend, Olivia, Conrad takes a box of her mementos to his self-storage unit only to be trapped on the top floor in a game of cat-and-mouse with a knife-wielding killer, and must defend himself using the very gifts that Olivia gave him.