Less than Zero by Bret Easton Ellis

Eighteen-year-old Clay returns to Los Angeles for Christmas break, drifting through a numb haze of parties, drugs, and casual sex among emotionally detached wealthy teenagers. 

This book contains: abortion, alcohol, alternate gender/sexual ideologies, animal cruelty, anorexia references, body horror, death/grief, deception, depression, derogatory terms, drugs (use, abuse, dealing, drugging), controversial cultural and social commentary, emotional numbness, explicit sexual activities/nudity, inflammatory racial and social commentary, murder, porn, misogyny/sexism, patently offensive content, pedophilia, profanity, rape/sexual assault, sadistic content, sex trafficking/prostitution, smoking, snuff films, suicide ideation, torture, toxic relationships, violence and voyeurism.