Samara Weaving stars as a young bride who marries into an eccentric and wealthy family who made their fortune in board games. As part of a strange family tradition, the bride is asked to play a game with her new in-laws on her wedding night. However, the game she draws turns out to be part of a macabre, life-or-death ritual, and she finds herself hunted by her new relatives with a variety of antique weapons throughout their sprawling mansion. She fight to survive until dawn as she tries to outwit her elite and unhinged in-laws.