Betrayed by her own blood and murdered on a rainy night, Meera wakes up 1 months in the past-pregnant and married to the terrifying Nattamai of Sembur. Realizing the husband she feared is actually her greatest shield, Meera decides to play a deadly game. She wears the mask of a fragile, naive wife, manipulating her powerful husband's overwhelming devotion to crush the father and sister who killed her. As the fortress of Sembur locks down, her enemies believe they are hunting a lamb, unaware that they have walked into the den of a lioness who has turned the Nattamai's love into a lethal weapon.