BERLIN. FOUR FRIENDS. ONE EXTREME IDEA. Kris, Tamara, Wolf and Frauke set up an agency called SORRY. An agency to right wrongs. Unfair dismissals, the wrongly accused: everyone has a price, and SORRY will find out what it is. It"s as simple as that. What they hadn"t counted on was their next client being a cold-hearted killer. But who is the killer and why has he killed? Someone is mocking them and their hell is only just beginning. From its shocking opening to its jaw-dropping conclusion, SORRY is one of the most gripping thrillers ever written.