When Tracy Collins agrees to meet up with the daughter she gave up for adoption more than twenty years ago, she is overjoyed to have the chance to kindle a relationship with her grandson, Jackson. But when Danielle suddenly disappears, leaving Tracy to look after Jackson, her new-found happiness is replaced by a living nightmare.
When a young woman's body is found frozen beneath the ice in a canal in North London, DI Dan Carter and DC Ebony Willis are worried it could be Danielle. But when Tracy receives a phonecall from a mysterious man, she receives terrible confirmation that Danielle, though alive, is in terrible danger.
With time running out for Danielle, Ebony Willis must go undercover to infiltrate Danielle's circle of friends. But playing the single mother is a role that is all too familiar for Ebony, and she'll have to draw on every ounce of strength to deliver Danielle's killer to the police, before the weight of her own past pulls her under.
