Harry Bosh, detective de la policia de Los Angeles, es un lobo solitario. Hijo de una prostituta asesinada, fue criado en orfanatos y quedo marcado tras vivir la dura experiencia de Vietnam. Ahora, un caso rutinario de muerte por sobredosis le devuelve inesperadamente al pasado. La victima, Billy Meadows, habia servido en su misma unidad en Vietnam. Ambos habian combatido en la red de pasajes subterraneos del Viet Cong y habian experimentado el horror del eco negrola reverberacion en las tinieblas de su propio panico. Ahora Meadows esta muerto. Pero su rastro parece apuntar a un gran atraco bancario perpetrado a traves de los tuneles de alcantarillado. / For maverick LAPD homicide detective Harry Bosch, the body in the drainpipe at Mulholland Dam is more than another anonymous statistic. This one is personal... because the murdered man was a fellow Vietnam ""tunnel rat"" who had fought side by side with him in a hellish underground war. Now Bosch is about to relive the horror of Nam. From a dangerous maze of blind alleys to a daring criminal heist beneath the city, his survival instincts will once again be tested to their limit. Pitted against enemies inside his own department and forced to make the agonizing choice between justice and vengeance, Bosch goes on the hunt for a killer whose true face will shock him.