John Wick (Keanu Reeves), who had just experienced the pain of losing his wife not long ago, did not expect the hardships and tortures to come one after another. His 1964 Ford classic car was targeted by a group of Russian gangsters, who immediately led the other party to break into the house and rob. His beloved dog was killed on the spot, and John was also ruthlessly beaten. The classic car was naturally taken away by the other party. The gangster who stole the car (Alfie Allen) is the son of the gangster Vig Tarasov (Michael Nyqvist), and Vig was very nervous after hearing about it, because John has a terrifying identity. He was once a famous cold-blooded killer. He killed many difficult opponents for Tarasov, but later he retired for his wife. John, who was extremely angry, refused Tarasov's mediation and decided to take revenge alone...