In the cult Japanese bestseller "Butter," a female gourmet cook and serial killer captures the nation's imagination. Journalist Rika Machida seeks to crack the case by exchanging recipes with the convicted killer, Manako Kajii. As their gastronomic exchanges unfold, Rika finds herself drawn into a complex web of obsession, misogyny, and transgressive pleasures. Inspired by a true story, this unsettling and captivating novel explores the dark allure of food and the unexpected connections that can emerge.