The Duel Twist: In the final duel, John and Caine fire at each other for three rounds, both sustaining wounds. In the third round, Caine fires, and John falls, appearing defeated. The Marquis, arrogant and eager to deliver the coup de grâce, takes Caine's gun to finish John himself. However, it is revealed John did not fire his final round. He trapped the Marquis by feigning defeat. With the Marquis now an active participant in the duel, John shoots him in the head, winning the duel.
The Ending: Following his victory, John is granted his freedom and Winston is reinstated. John sits on the steps of Sacré-Cœur, visions of his wife Helen appearing as he succumbs to his wounds. The final scene shows Winston and the Bowery King standing over two graves: Helen Wick and John Wick. The Bowery King asks if John is in "Hell or Heaven," and Winston replies, "Who knows."
Post-Credits Scene: Caine, now free, approaches his daughter playing the violin. However, Akira (Shimazu's daughter) approaches him through the crowd with a knife, seeking vengeance for her father's death, implying the cycle of violence continues.