One night, three young women, the neon lights of the boulevards, empty streets, a mall, quiet gardens, the tower plaza, the esplanade of the station, a farewell coffee, a camera, a concert, a terrace, then the city waking up, Montparnasse.

Antoine, a handsome boy in his 20s, falls for a straight best friend who does not reciprocate, and being a junkie exits the film quite early. Enter a girl, who seems to make him happy again, after he has tried living as a rent boy with men, having some familial, financial difficulties. But the girl is a junkie too.

Julien and Emma are brother and sister, living in rural France with their father, who writes children's books. Julien is a gifted pianist but the loss of his mother has sucked the joie de vivre out of him; his best friend Alice knows it although their platonic relationship is more about him supporting her in bad relationship choices than anything else. When he sees a beautiful woman called Olga in a bookstore, Julien is smitten and sets about to set up someway of impressing her and winning her affection.

August in Paris' suburbs, seven friends are gathered to spend a week in the city where they grew up. The city is empty and the days pass by under a deep blue sky. Each of them has a reason to be there: some still live there, some come back to see their family, some are searching their childhood, some want to escape boredom or eventually searching for love. They are all bearing the fact that these moments they are sharing are maybe the last ones.

On Christmas Eve, a West suburb of Paris. Stéphane, Joëlle, Xavier and Sonia (25 years old) decide to take a stroll down the big park overhanging the city of their youth, musing on pop music, their work, sex and their disappointed ambitions.

Lisa, a single woman, decides to take a chance on love again by catapulting her life from Paris to Los Angeles. Her children flew the coop and her famous, yet absent mother just passed, so Lisa needs a big change. She reunites with her best friend Luka, who found success in America but is struggling to find his own prince charming. Luka embarks on a mission to give Lisa a fresh start by creating a profile for her on a dating website.

Brought back to life by an unorthodox scientist, a young woman runs off with a lawyer on a whirlwind adventure across the continents. Free from the prejudices of her times, she grows steadfast in her purpose to stand for equality and liberation.

The highs and lows of different pairs show that in the end only one thing counts: love.

As he tries to help a woman, an anonymous man finds himself lost on the no man's land of the railways in a strange train station at night, in Paris.