Joanne's just had a baby. But her pals keep forgetting that she's no longer available for tequila-fuelled nights out.

She loves her son and her boyfriend but the loneliness is killing her. Claire is feeling left out. The Whatsapp chat with her old school friends is ominously quiet these days, which can only mean one thing: a side group without her. Can she convince them to give her another chance, or is it time to move on and seek out new BFFs?

Fate brings Claire, Joanne and Lexi together as they navigate the knotty, joyful and occasionally toxic swamp that is female friendship.

But how will they each decide which friendships to fight for, and which to let go forever?