Samir, a tall, lanky, 40-something crane operator from Montreuil, in the outskirts of Paris, falls head over heels in love with Agathe, a feisty young woman he sees in a café. He discovers she is a swimming instructor at the local public swimming pool, and, for lack of a better plan, he decides to enlist as her student…although he can swim perfectly. But his lie only lasts for three lessons, and Agathe hates liars. The truth surfaces. Agathe is furious, is this the end...?