In a house with slate grey walls, splashy art and artisanal chopping boards, two 21-year old women are cos-playing in an adult world, listening to people in their — gasp — 30s talk about wedding days and squandered dreams. Bobbi (Sasha Lane) draws a crowd by playing impish iconoclast, laughing at the married, conventional people, and kissing the (married) hostess Melissa (Jemima Kirke). Meanwhile, Bobbi’s ex-girlfriend and best friend Frances (Alison Oliver) drifts around the house like a maudlin ghost.
Upstairs, she looks for the only other person under this roof as determined as her not to have any fun: Melissa’s husband, Nick (Joe Alwyn), who has got high to deal with the existential anguish of being a good looking, well-off and reasonably successful actor. Inevitably, an affair commences.
