After discovering One Night isn't purely a work of fiction, Hat grows increasingly nervous over the repercussions of keeping the truth from Tess, and the secrets Simone's novel exposes. Everyone is at risk, and they aren't the only ones reading.

Believing Tess to be the author of One Night, Eden tracks her down and asks her about the crime at the heart of the novel. Confused by Eden's claims, Tess is horrified to realise that Simone has written an Anonymous novel about her rape.

Amidst the book's soaring success, fractures among the three friends deepen. Simone strives to reveal herself as the author, Hat fights to have the book removed from shelves, and Tess devises a revenge plan against the Calleys.

Fearing Trevor Calley, Hat begins her own investigation into the events of the past. But as she digs deeper, it becomes clear that the police are hiding something.

After twenty years of lies, Hat unearths a shattering secret that could finally give Tess and Simone the whole truth, and the closure they need to move on. But will their friendships, the families or the Calleys survive the revelations?