Vera's reunited with her first mentor and colleague after his home is firebombed and his teenage daughter badly injured.

A well-respected social worker has been drowned, and in her most famous case a child was drowned by his mother. What exactly is the connection?

A young man is found dead with heroin in his blood and a stolen credit card in his wallet. But only when Vera learns details of his mother's life does a motive for murder emerge.