Chan Wing Yan, a young police officer, has been sent undercover as a mole in the local mafia. Lau Kin Ming, a young mafia member, infiltrates the police force. Years later, their older counterparts, Chen Wing Yan and Inspector Lau Kin Ming, respectively, race against time to expose the mole within their midst.

Léon, the top hit man in New York, has earned a rep as an effective "cleaner". But when his next-door neighbors are wiped out by a loose-cannon DEA agent, he becomes the unwilling custodian of 12-year-old Mathilda. Before long, Mathilda's thoughts turn to revenge, and she considers following in Léon's footsteps.

这是多么愚蠢而浅薄的犯罪，隐藏的真相却震撼人心！ ============================================================== 这家人看上去再平常不过：前原和妻子人到中年，上有痴呆的老母亲，下有未成年的儿子。 平静在一个下午被彻底打破：儿子在家中勒死了一个小女孩。前原夫妇决心移走尸体，掩盖罪行。 前原的供述合情合理，无懈可击，警方完全可以结案，但刑警加贺看到前原的母亲涂红的手指时，明白了事实真相。 ============================================================== 周刊文春推理小说榜第4名 “这本推理了不起！”第9名 我姐姐读完《红手指》，流着泪给我打来了电话。——东野圭吾 《红手指》是加贺系列中我最喜欢的故事，敏锐描绘了养老和家庭矛盾等每个家庭都会遇到的问题。——阿部宽