Uzumaki

Kirie Goshima lives an ordinary life with her family in the town of Kurouzu-cho. One day, on her way to meet her boyfriend, Shuuichi Saito, at the train station, she spots Shuuichi’s father in an alley, fixated on a snail shell. She mentions it to Shuuichi, who admits his father has been acting strangely. He confides in her about his growing urge to leave town, claiming Kurouzu-cho is "infected with spirals." Soon, his father’s spiral obsession takes a dark turn, triggering a series of bizarre and gruesome events. As the horror spreads, the town’s residents slowly lose their minds, caught in a nightmarish descent.