This paperback thriller, 'Mörder ohne Gesicht' by Henning Mankell, is part of the popular Swedish author's acclaimed Wallander series. The novel, originally published in 2009, quickly rose to become a bestseller. It explores the complex world of Swedish detective Inspector Kurt Wallander as he embarks on a gripping investigation. Mankell weaves a captivating narrative filled with mystery, suspense, and unexpected twists, leaving you on the edge of your seat.