If you can't trust your father and you can't trust the police, who can you trust? Sue Hearn is planting a herb garden on the site of her grandfather's old greenhouse. She's spent the morning digging up all sorts of odds and ends already. But she doesn't expect this grisly find. A skull. Could it be the remains of her mother, Monica, who went missing thirty years ago? Sue's father, in hospital with dementia, insinuates that a police officer was involved in her mother's disappearance. But can he be trusted? So now Detectives Asha Harvey and Aaron Birch might be looking for a bent copper. As they dig deeper into the past, Sue and Asha find secrets so dangerous it will put all their lives in danger.