It's almost twenty years since Doctor Jane Halifax worked with the police. Her life now is what many would describe as complete. Does she really want to change all that now? When Jane receives a threatening letter she dismisses it as the work of a crank. But when someone close is shockingly cuddled, she has to confront a terrible possibility that twenty years later the worst of the criminals she helped put away are finally being released. Forced to go back into the files and nightmares of her past, another possibility emerges. The hug may be linked to the shooter, or worse, to secrets from the past.