Christine Brett has two problems: one, her disempowering divorce and the other, caring for her invalid mother, Emily. Matters don't improve when Christine becomes obsessed with Neighbourhood Watch and reports her neighbours for trivial offences. This infuriates Harry Myers, who lives nearby, and a row breaks out. Visiting the local supermarket she witnesses a robbery, and is distressed to find the face of the getaway driver alarmingly familiar. But her reputation with the local police for crying wolf has preceded her and no one will take her seriously. But Christine is right to be afraid: if she can identify the getaway driver, then it's likely that he has also seen her. And if she is the sole witness, he will do his utmost to silence her.