As the battle for survival rages between humans and parasytes worldwide, a new narrative emerges in the shadow of Shinichi and Migi's legend. Seasoned detective Fukami pursues a string of gruesome dismemberment cases, only to be unnerved by the eerie composure of a high-schooler witness, Tatsuki. The source of Fukami's unease lies intertwined with Tatsuki's family, unveiling a hidden enigma behind the timeless classic 'Parasyte' manga series.