July. Major holiday departures. TGV Paris-Brest. Alex does her first steps as a train controller on a great line, flanked by her colleague Antoine. During an inspection, she crosses the way of a passenger who diverts her from her new functions.
Tomas and Martin are a gay couple living in Paris whose marriage is thrown into crisis when Tomas impulsively begins a passionate affair with young schoolteacher Agathe. But when Martin begins an affair of his own, Tomas must confront life decisions he may be unprepared—or unwilling—to deal with.
