Six buried arms. Six missing girls. A team led by Captain Roche and internationally renowned criminologist Goran Gavila are on the trail of a serial killer whose ferocity seems to have no limits. And he seems to be taunting them, leading them to discover each small corpse in turn, but the clues on the bodies point to several different killers. Roche and Gavila bring in Mila Vasquez, a specialist in cases involving children, and Mila discovers that the real killer is one who has never lifted a finger against the girls - but merely psychologically instructs others to do his work: a 'subliminal killer' - the hardest to catch¿