Mothers can be Monsters (Monsters #6)

As a child, Vicky Smith suffered abuse at the hands of her father until she managed to escape. But even then, she wasn’t safe; her foster parents abused her too. Now, as an adult, she hasn’t forgotten. And when her son, Matt, reaches the same age she was when the abuse started, something in her changes. Matt becomes the object of her wrath, her frustration, and together with her eldest son, Jamie, Matt will soon learn he can do nothing right without upsetting her.
Matt is going to discover what it means to starve, to want to die rather than continue being tortured at the hands of his mother and brother.
And, unfortunately, Matt will see his wish come true…
Based on a true case.