Tomas, a German filmmaker based in Paris, has completed his latest film. At the wrap party, he meets Agathe, a young primary school teacher, and dances with her after his husband, Martin, an English printer, declines to dance with him. Tomas goes to Agathe's home for an after-party, and the two have sex.Upon arriving home the following day, Tomas, who slept over at Agathe's, admits to Martin that he had sex with a woman and felt something he had not felt in a long time. Tomas argues that their marriage is deteriorating and enraged by Martin's refusal to discuss it, starts packing a suitcase to leave but is stopped by Martin. Before leaving, Martin kisses Tomas and assures him they will overcome this. Later, Agathe visits Tomas at the editing room of his film. They have sex again.Tomas and Martin travel to their country house and ultimately discuss their lives together. Tomas expresses dissatisfaction with their too-comfortable and riskless relationship, while Martin accuses him of falling in love with Agathe.Back in Paris, Martin meets Amad, a writer and novelist, through a mutual friend at a restaurant. When Tomas arrives, he is somewhat hostile towards Amad and later tells Martin he finds Amad "an arrogant prick". As they leave, Tomas claims to be heading to the editing room but goes to Agathe's instead and spends the night there. In the morning, after Agathe sings Tomas a lullaby from his childhood, he confesses he has fallen in love with her.Tomas and Martin officially separate, and Tomas moves out of their apartment into Agathe's. While packing, he stumbles upon Amad's book, which Martin is reading. On his way out, Martin informs Tomas he will put the country house up for sale, as he does not wish to own anything with Tomas anymore.Martin begins a relationship with Amad, whom Tomas runs into when he uses his key to enter Martin's apartment unannounced; Tomas storms out. After Tomas turns up at Martin's workplace to share that his film had a negative first screening, Martin asks him for the apartment keys back.While at a restaurant with Agathe and friends, Tomas sees Martin arrive with friends, but the two men avoid speaking to each other. Tomas later comes by the apartment to return the keys, inviting himself to spend the night and come with Martin to the country house early the next morning for repairs, claiming it is his property as well. At bedtime, Tomas enters Martin's room and they have sex. In the morning, Tomas reveals to Martin that Agathe is pregnant.Tomas arrives late to dinner with Agathe's parents at her house. They interrogate him about his plans to support Agathe and their child, as well as his past with Martin, to which he is hostile and defensive.Tomas returns to Martin's apartment, telling him that audiences loved the recent screening of his film. He kisses Martin and invites himself inside. Tomas proposes that he and Martin raise the baby as a family, confessing he is confused about his feelings for Agathe and misses being with a man. Martin immediately breaks up with Amad, who says neither Tomas nor Martin will survive the relationship.Some time later, Agathe, Tomas, Martin, and friends gather at the country house. Agathe listens to the two men have sex from the other bedroom. Tomas later climbs into Agathe's bed and embraces her while she is crying.Agathe severs all contact with Tomas. She meets Martin for lunch, where she reveals to him that she has undergone an abortion, stating that although she wants a family, she realized she would disappear among the three of them. Martin holds back tears, and they say goodbye.Upon returning home, Martin breaks up with Tomas, refusing to accompany him to Venice and telling him to never contact him again. Tomas stops by Agathe's classroom, begging her to forgive him and inviting her to join him on his trip, but she rejects him as well. He then rides his bicycle aimlessly through the city.
Storyline
As the shooting for his latest production wraps up, director Tomas ( Franz Rogowski ) celebrates in the company of his husband Martin ( Ben Whishaw ), the film crew, and their guests. Among the latter, is Agathe ( Adèle Exarchopoulos ), a young woman who invites Tomas to dance. Soon, the two begin a passionate affair, one that would not just put strain on the relationship between Tomas and Martin, but also resonate through the wider circles inhabited by the three main characters. Personal matters interrupt their professional lives, friends and family provide opinions - warranted or not - and the ménage à trois arrangement is put under further pressure as complications arise. — aherdofbeautifulwildponies