A cop knocks on the door of John Wick’s home late one night and can’t help noticing a few thugs mortally strewn across the living room floor. “You workin’ again?” he asks mildly. “No,” Wick replies, “I’m just sorting stuff out.” The cop smiles and says, “O.K., John, Good night.” Five years ago, Wick (Keanu Reeves) was an expert hit man who often worked for the Russian mob boss Viggo Tarasov (Michael Nyqvist).