Early one icy winter morning, Detective Alex King is called to a murder scene at a local park. The river is running high, and in the water lies the body of a woman, her wrists tied, and all her fingernails missing.
The victim, beautiful, young Lola Evans, had a troubled past, but Alex's team can't find a reason why anyone would want to kill her. The pressure to solve the case keeps mounting, but all their leads run dry.
Then, another body is found in the water.
A disturbing clue suggests how the girls are connected. But who would target such vulnerable girls, and does this mean another life is at risk? Just when Alex thinks she has cracked the case, she realises one of her own team is in terrible danger.
Alex is caught in a race against time to reach the next victim before it's too late... and some of her team must face terrifying truths from their own lives if they're to have a chance of catching the killer.