Zhao Mingzhu has been blind for three years, while her husband shamelessly cheats at home. One day, by accident, she witnesses the scene of her son being murdered. After the shock and impact, she regains her sight and discovers that her home is no longer as it once was. In order to expose the ugliness of her husband and his mistress, and to avenge her child, Zhao Mingzhu swallows her hatred and pretends not to see the unfolding events. However, her plan for revenge has already quietly begun to take root in her heart.