When DCI Derek Harmsworth is killed in a car crash, DI John Gray is convinced that Harmsworth was silenced because he was investigating the violent murder of MP Jason Giddings. When Gray himself is murdered, it seems that those in power must acknowledge that someone doesn't want the truth to come out. Patrick Gillard, ex-MI5 and now SOCA, and his consultant (and wife) Ingrid Langley are brought in to assess further risks to the police. They discover that DS Erin Melrose is determined to make it her personal crusade to find the killers of her bosses, but it is a mission that will put her and others in grave danger. Download and start listening now!