Grace (Samara Weaving) has married her fiancé Alex Le Domas (Mark O'Brien) and can't wait to join his wealthy and flamboyant family. On the young couple's wedding night, Grace is invited to play a game which will be her final initiation into the family, but there is a deadly twist.

The game is a lethal game of hide-and-seek which will see Grace being made to run for her life, and if she is found, will be killed as part of an old family ritual. Will Grace escape her husband's psychopathic family and put an end to their masochism?