The trade notes that the film won't be a remake of the 2000 dark comedy starring Christian Bale as Patrick Bateman and instead will be a new adaption of the novel.
"We are thrilled to add another elite filmmaker to our upcoming slate," Lionsgate Motion Picture Group chair Adam Fogelson said. "Luca is a brilliant artist, and the perfect visionary to create a whole new interpretation of this potent and classic IP."
American Psycho follows a New York City investment banker who leads a double life as a serial killer. The 2000 film also starred Willem Dafoe, Jared Leto and Chloë Sevigny.