Antoine is now 30, working as a proofreader and getting divorced from his wife. It's the first "no-fault" divorce in France and a media circus erupts, dredging up Antoine's past. Indecisive about his new love with a store clerk, he impulsively takes off with an old flame.
At Bertrand Morane's burial there are many of the women that the 40-year-old engineer loved. In flashback Bertrand's life and love affairs are told by himself while writing an autobiographical novel.
Isa and Marie bond while working in a French sweatshop and soon begin sharing an apartment that Marie is watching for a hospitalized mother and daughter. Marie, hoping to avoid a life of struggle and poverty, takes up with Chriss, a nightclub owner whose most attractive asset is his money. Isa recognizes the ultimate futility of the relationship and tries to keep Marie away from him, but her interference puts their friendship at risk.
