Enzo has not heard from Angèle since the fiasco of his last visit, but he does hear from Brice, who contacts him unexpectedly to share stories about his father. Enzo finds out that Brice used to be a very close friend of his father's, and Enzo is thrilled to gather some information at last.

Enzo could not be happier. At last, he is reunited with his father, and his sister!

In this episode of "Le Jour où tout a basculé" (The Day Everything Turned Upside Down), Sybille, a bored and lonely housewife, has developed the peculiar habit of spying on her neighbors across the street, much to her husband's dismay.

Sybille is concerned that the man she's been spying on is now watching her. Undaunted, she walks across to his apartment building to investigate. But she is stopped in her tracks, and things don't go according to plan.

Sybille's anxiety escalates as the spying continues. The stranger across the street is staring out the window all day long. To make matters worse, her husband comes home late, very late, and is less than sympathetic to her plight...

Sybille and Édouard are still at odds with each other as Sybille now accuses him point-blank of having an affair with Vanessa. The mysterious neighbor doesn't cooperate with Édouard's scheming but pursues her own agenda.

Sybille and Édouard meet for drinks at Vanessa's apartment. Vanessa finally admits that a tenant lives with her, but he remains elusive. Vanessa's dubious explanations do not satisfy Sybille and only add to her curiosity.

Sybille finally finds an opportunity to knock on the door of the stranger who has been spying on her for weeks. She braces herself and confronts the stranger.... Or is he a stranger? A pleasant surprise is in store for her.