Simmering tensions, unexpected guests and romantic rivalries lead to mayhem at Elsa's 30th birthday party.

Anaïs drops in for a visit as Elsa wrestles with growing doubts about Jules. A moment of reckoning pushes longtime friendships to the breaking point.

As a shell-shocked Elsa takes stock of her life, Jules and Max vie for her attention. Matthieu helps Charlotte with a new business idea.