Asesinos sin rostro (Wallander, #1)

Faceless Killers (Swedish: Mördare utan ansikte) is a 1991 crime novel by the Swedish writer Henning Mankell, and the first in his acclaimed Wallander series. The English translation by Steven T. Murray was published in 1997. In 1992, Faceless Killers won the first ever Glass Key award, given to crime writers from the Nordic countries.