Ro Snow is the girl no-one notices - she doesn't go to parties and she doesn't have friends over. Besides, even if anyone tried to call on her they'd discover that no. 56 Arcadia Avenue isn't her house at all - it's her decoy house. Because her real home, a few doors down, is a tip of rubbish and paper and she can't remember the colour of the carpet it's been so long since she's seen it. Her mum, Bonnie, is a hoarder and Ro lives in terror of social services finding out about the squalor she is forced to live in. But when Noah moves in next door, Ro can't hide the truth from him and she finds herself opening up for the first time in her life. And then there's the new girl at school, the adorable and persistent Tanvi who can see that carefully hidden something-special in Ro too. And it's not long before Ro's carefully constructed castle of loneliness is crumbling down around her, but if she's out in the open, so is her painstakingly guarded secret ...