It's not uncommon for writers to research and experience first-hand the material they plan to write for their story but when the title of your novel is "Cannibalistic Instincts", you honestly don't want to be, uh, eating people's body parts (let alone committing murder). Unfortunately, that's what the police suspect to be the case in this scenario:
An aspiring horror novelist was arrested after police discovered his girlfriend's torso in his closet, a leg in the refrigerator and bones in a cereal box, the city prosecutor's spokesman said Thursday.
Nearby they found the draft of a novel titled "Cannibalistic Instincts," said the official, who spoke on customary condition of anonymity.
Jose Luis Calva told police he had boiled some of his girlfriend's flesh but that he hadn't eaten it, the spokesman said.