A brutal mutilation case shakes a residential building, leaving even veteran police captain Peng Zhao Lin horrified. His greatest regret—having unknowingly crossed paths with suspect Deng Li Gang, whose gang preyed on nightclub girls through kidnapping, extortion, and murder. Despite an intense nationwide hunt, the criminals vanish, assuming new identities for a peaceful life. Yet, Peng Zhao Lin remains haunted by the victims' cries. When a small clue resurfaces an unsolved case, he sets off on a relentless pursuit to bring the murderers to justice.