Paris 2052. Julia, 80 years old, had a fulfilled life. On her birthday, she reflects on the decisions and circumstances that could have led her on different paths. From the age of 17 to this day, her life was full of small but critical moments. Each was a turning point with dramatic consequences. What would have happened if she had forgotten her passport, chosen a different line at the store, driven the scooter this one time...? Is her life a succession of coincidences and accidents or a ready-made path?

They lived intensely. They were beautiful. They were inseparable. They were five but now there's only four of them - A group of childhood friends drowned in the murky waters of grief, a brutal return to reality - Arthur refuses to grow up without his friend and tries to get away by pursuing a dream that was previously buried: writing a movie. But he can't prevent the demons of the past from re-emerging - Torn between love and friendship he gradually loses control, at the risk of dragging everyone into his downfall.

Marion has just moved to the German side of the French-German border to follow her boyfriend - Lukas - who recently got a job in a theater company. On the day of her 28th birthday, Lukas surprises Marion by proposing to her. Aged now 29 and 28, they have been together for three years and are the happy owners of a brand new house - all the ingredients are gathered to become adults and commit - or so they thought.