Sébastien Messier and Danny Demers have been friends forever and share all kinds of things, including a passion for boxing. After being away for a year and a half, Danny returns to Montréal. He’s hit rock bottom and has no immediate prospects. Sébastien, on the other hand, is well on his way to seeing his dream come true as he prepares for the fight of his life and a chance at becoming world champion. Their reunion is emotional, full of memories, and potential. But a dramatic event completely changes their lives. Blinded by ambition, Sébastien loses sight of what is really important. But his desire to compete with Danny inspires him to take control of his life. Initially, Sébastien thinks all he has to do is to get back into shape to prove his superiority. But ghosts from their past come back to haunt him. Somehow, he finds the courage to face his demons, showing Danny the ultimate proof of his friendship. La ligne brisée is the story of two friends who deserve each other, for all the best and the worst reasons. Standing tall in life is much harder than staying on your feet in the ring.