When a phone call ends Private Investigator, Sonoma (Sonny) Whittington's planned lazy weekend, she has no idea she is about to be dragged into the murky world of drug trafficking, corrupt public servants, money laundering, death and attempts on her own life. Sonny's former boss, Therese Melrose, is dead. The family can't accept the Police verdict of domestic accident and asks Sonny to take a look at what happened. Although reluctant to revisit that earlier time in her life, Sonny agrees to spend a couple of days on an investigation. Key items are missing from the crime scene and the investigation quickly develops sinister overtones. Sonny finds herself having to call on former public service colleagues and long-time friend, Detective Ben Richards, for assistance to unravel clues that uncover Melrose's dark side.