Childhood best friends Maggie and Birdy move into their first London houseshare, along with their friends Nell and Amara; Maggie unexpectedly meets a musician.

The girls settle into their new lives in London; Birdy continues to date Nathan, but as things between them start to get serious, Maggie realizes they're drifting apart.

Struggling to come to terms with Birdy's blossoming relationship, Maggie heads to her hometown for a messy and humiliating weekend that leads her to reevaluate her relationships.

Maggie decides to "grow up" by focusing on work and swearing off sex and booze, but her new attitude drives everyone mad; tensions come to a head at Heirs & Graces.

The girls throw a queen-themed house party; Birdy makes it clear she prefers spending time with Nathan and bails from the party, despite Maggie's complaints.

Maggie and Birdy try to rekindle their friendship with makeovers, baking and trips down memory lane, only for tensions to explode in dramatic fashion.