A young woman dreams of a perfect family life, yearning for a fresh start after growing up in an orphanage. She is about to marry a handsome and wealthy man who seems to have it all. However, there's an unspoken tradition in his family that she is unaware of—on the night a new member joins the family, everyone must participate in a game. If the game is harmless, she’ll be fine. But if it turns sinister, she must become the prey, hunted by the rest of the family.