After losing her parents, Lin Miao is exploited for five years as a free housekeeper by her shameless uncle's family of four, who have taken over her home. After awakening to her situation, Lin Miao waits until the family leaves and sets dangerous animals loose inside the villa before changing the locks as a warning. When her uncle returns with people to break in, screams and the judgment of the law await them. But this revenge also uncovers the truth behind her parents' car accident five years ago: her uncle had hired someone to murder them. Carefully executing her plan step by step, Lin Miao ultimately sends all the culprits to prison and reclaims everything that rightfully belongs to her.