Paul Kersey (Bruce Willis) is a surgeon who saves lives every day. When unknown perpetrators make a brutal assault on his family, he must first seek help. The police remain deaf to his appeal. The desperate man decides to do justice to himself. When the attention of the media attracts the killings of other gangsters, they all ask themselves one question: are they dying from the hands of a hero or a bandit? Known for his desire for revenge, Kersey realizes that he can help others. Not everyone likes the fact that a man is above the law, and the police are getting closer to discovering the identity of the avenger.