Museum plunges detective Hisashi Sawamura into a rain-soaked urban nightmare, hunting the 'Frog Man,' a meticulous serial killer executing gruesome 'justice' on perceived societal failures, motivated by a traumatized past. As Frog Man's warped world-view and escalating attacks force Sawamura to confront his own parental failings and the blurred lines of justice, this psychological thriller twists into a desperate, personal fight to save his family. This acclaimed Japanese manga masterfully weaves themes of revenge, responsibility, and past regrets, creating intense suspense and a chilling exploration of dark human nature that captivates readers.

Alternative search keywords: Museum manga, Bokura wa Shinyuu to Iu Tei de, Girl and Killer, Onna to Koroshiya, The Serial Killer Is Laughing in the Rain, ミュージアム, Frog Man manga, psychological horror, detective thriller, crime suspense.