Marcus Blake is drawn into the murky world of county line drug gangs as he searches for a missiing girl, Jessica. She is the daughter of London's top criminal, but her father has been absent in her life for several years. During his search, Marcus learns of another woman who went missing twenty years earlier. She is coinnected to the family and was presumed to have been raped and murdered, but Marcus only becomes aware of ths significance of her disapearance as he closes in on the Jessica's kidnapper.