Joanna is desperate to ingratiate herself with a popular clique of mothers at her son's new school. But when she tries to impress them by repeating a rumor she overheard at the school gates, there's no going back. . . .

Rumor has it that a notorious killer, a woman who has been released from prison years after her brutal crime, is living under a new identity in Joanna's seaside town. So who is the supposedly reformed murderer now living in their neighborhood? Suspicion falls on everyone.

Joanna becomes obsessed with the case, pawing through decades-old records in an attempt to name the killer. But her curiosity not only ostracizes her from the community, but exposes her son and his father to a heartless psychopath who has killed--and may kill again.

How dangerous can one rumor become? And how far will Joanna go to protect those she loves from harm, when she realizes what she's unleashed?

Joanna is going to regret the day she ever said a word....