Joseph, 30, has just moved in with Margaux. He decides to carry out an experience: to film Margaux every day, in her natural environment (with her friends, her parents, in the evening, when you wake up, taking her life in hand or in full existential questioning ...). Joseph, whom we never see, thinks giving us the look he has on "his girl", both in love and ironic, but Margaux reflects back to him, in mirror, the look she has on him, on them , on their couple, a couple in their thirties today.
