An innocent night between a loving young couple takes a bizarre turn when a psychotic serial killer comes knocking at their door. As the couple starts to fend for their lives, we soon learn there might be more to their story than meets the eye. Their fight for survival leads them into a series of unsettling encounters within the criminal underworld. In order to survive the night, the couple must stick together, make increasingly difficult choices and outsmart their violent adversaries, all while usurping a police officer looming in their midst.