John Wick, infamous as the best hitman in the business, has retired from the trade after his last job. But the peace and quiet doesn't last long. After his house is broken into, he finds himself face to face with his former boss: Viggo Tarasof, leader of New York's most dangerous gangster syndicate. To rid himself of his past once and for all, John prepares for the ultimate revenge campaign. Because Viggo has sent one of the best killers after him: John's old friend Marcus.