An investigative journalist turned private detective Ramona Chang's final scoop left her with a target on her back. Now in hiding she is living in a run-down flat in east London. But when her latest case looking into an upmarket escort agency takes a dark turn she needs information only accessible to those in power . . . A high-flying operative at a government agency it's the day of her 50th birthday when Detective Sergeant Madeleine Farrow finds out that she has been given the lead on an investigation into corruption on a global scale. But when she finds her case mysteriously blocked from the inside she needs someone on the outside capable of moving undetected . . . As Ramona's and Madeleine's cases collide can the unlikely allies find justice for multiple victims within the capital's hotbed of lies and deception?