Ella is wearing jersey number thirteen. Simon has twelve failed dates. Unknown to each other, they go about their destiny. What if today was their lucky day?

Jean is a "slow" man, he builds his life around his anxieties, and considers himself unsuited to life in society. He lives with Alex, who is a "fast" man. Passionate about aerodynamics and eurodance, Alex lives fast and asks himself as few questions as possible. One morning, he receives a fast friend, Lou, at their place, while Jean had also planned to receive a slow friend, Caroline.

The Farels are a power couple: Jean is a prominent French pundit and his wife Claire an essayist known for her radical feminism. Together they have a model son, Alexandre, who is a student at a prestigious American university. During a brief visit to Paris, Alexandre meets Mila, the daughter of his mother’s new partner, and invites her to a party. The next day, Mila files a complaint against Alexandre for rape, destroying family harmony and setting in motion an inextricable media-judicial machine that posits opposing truths.

Antoine - a grieving loner - spends his days in a cafe on Place Clichy watching people. Every day, he sees a woman he calls Albertine get out of the subway and go to the movies. Today, he takes it upon himself to talk to her. Thus began Antoine's down-going.

After meeting at a party, Isaac and Ava spend the night walking in the cold Parisian winter and fall in love without even realizing it. But Ava has to go to Brazil the next day. As he waits for her alone, Isaac learns that Ava's plane has gone missing.