Cen Jing is a detective who is investigating a mysterious thief called the Queen of Hearts. By chance, she handcuffs herself to Ji Shuanrong, a bar dancer who is actually her former client. To get her back on the right path, Cen Jing infiltrates her life and discovers that she is the Queen of Hearts she has been looking for. But as they get involved, Cen Jing realizes there are more secrets behind her identity...