Single mum Jane has just moved to town. She's got her little boy in tow - plus the secret she's been carrying for five years. On the first day of the school run she meets Madeline - a force to be reckoned with, who remembers everything and forgives no one - and Celeste, the kind of beautiful woman who makes the world stop and stare, but is inexplicably ill at ease. They both take Jane under their wing - while careful to keep their own secrets under wraps. But a minor incident involving the children of all three women rapidly escalates: playground whispers become spiteful rumours until no one can tell the truth from the lies. Which is when the secrets come out - and now someone is going to pay with their life . . .