Detective Martin Wegener is assigned to the case, but, with the future of East Germany hanging over him, Wegener must work with the West German police if he is to find the killer, even if it means investigating the Stasi themselves. It is a journey that will take him from Stasi meeting rooms to secret prisons as he begins to unravel the identity of both victim and killer, and the meaning of the mysterious Plan D.
Plan D is a gripping thriller and a thought-provoking alternative history in the vein of Robert Harris's Fatherland and John le Carré's The Spy Who Came in from the Cold.