When her unfaithful husband’s mistress mistakes her for her own mother-in-law, Beth decides to play along with the ultimate poker face. Seizing the authority of her fake persona, she sets a series of strict rules and psychological traps to systematically strip the mistress of her pride and dignity. Her brilliant plan reaches its climax at a grand wedding banquet, where she publicly shames both her husband and his lover in front of the city's elite. With a final, elegant checkmate, Beth takes back everything that was hers and walks away as the undisputed winner. Success is her best accessory. A story of high-society revenge.