Enzo unexpectedly meets his father for the first time at Angèle's house. Feeling extremely awkward, he cuts short his visit with Angèle, who, of course, doesn't understand. She later reveals her true feelings for Enzo, who recoils when she tries to kiss him. Angèle storms off, hurt and mystified.

Enzo's mother finally admits that she knew of his father's whereabouts and asks for Enzo's forgiveness for keeping it a secret. Enzo is still in shock and not ready to forgive her. He's following another lead, a young woman who may eventually take him to his real father.

Enzo is convinced a man with a thorny rose tattoo is his father. He can't wait to share his discovery with his mother, but she claims it's not possible: because of his shady past, his father can't be in the country. But Enzo doesn't want to believe her....

In this new series, Le Jour où tout a basculé (The Day When Everything Turned Upside Down), a mother and son's close relationship is about to change. Enzo, who lives with his mother Murielle, runs into a man with a distinctive tattoo. Determined to track down the man, whom he believes to be his father, he starts an inquiry of his own despite his mother's skepticism.