When a Parisian filmmaker begins work on a new movie about polyamory, she gets lost between fiction and reality, risking both her art and her relationships. As a combination of fiction and documentary, the film could be classified as a ‘UMO’: Unidentified Movie Object! On the one hand: a comedy about a female director who plays with fire by testing out polyamory on her own relationship. On the other hand: a serious, poised, and thought-through documentary with speakers who have reflected on the topic or who live it everyday. Between the two, a grey area in which fiction gets entangled with reality. Will her sweetheart rise up to the challenge of polyamory? Will she finish her film?