Monster season 2 gets a mixed response, even compared to Monster: The Jeffrey Dahmer Story. Consisting of nine episodes, the follow-up to Dahmer focuses on Lyle and Erik Menendez, two brothers who murdered their parents in 1989. Although prosecutors put forth different motivations for the crime, including a possible inheritance, the siblings say that they were physically and sexually abused by their father while their mother encouraged this behavior. The Monsters season 2 cast includes Cooper Koch, Nicholas Chavez, Javier Bardem, and Chlo Sevigny