Following the death of his father, Lyle Bennett sets out on an extreme weight loss journey in the hopes of reaching health and happiness. His goal will push him past his physical limits and test the strength of his mental and emotional stability.
八墓村因为战国时代村民设计杀害了8个落魄武士而得名，大正年间还发生过田治见家主人杀害了32个村民的惨剧。一日，一个叫寺田辰弥的年轻人回到八墓村打算继承田治见家的家业，然后悲剧开始接连不断地上演，与他身世相关的多人遇害。在金田一抽丝剥茧，探寻辰弥身世谜团的时候，村民认为是冤魂作祟将辰弥赶进了一个巨大的钟乳石洞，而洞内隐藏了更大的秘密……
过着无精打采日子的平凡大学生的私，一边被在“捉迷藏社团”中遇到的冷酷且聪明的前辈所吸引，一边与瞬间掌握人心的神秘男子黑服实现命运般的相遇。无聊的日子一变，被卷入了名为“真夜中乙女战争”的东京破坏计画中……
