Shall We Kiss? (Un baiser s'il vous plait?)

While traveling to Nantes for one evening, Emilie meets Gabriel. Equally seduced by one another, but both otherwise committed, they know they will probably never see each other again. He would like to kiss her. She as well, but a story prevents her from doing so: that of a married woman and of her best friend who were surprised by the effects of a kiss. Of a kiss that should have born no consequences.