The second instalment of anthology series, which started with the story of Jeffrey Dahmer (Evan Peters), is back. tells the story of the Menendez brothers who killed their parents on August 20, 1989. The brothers were convicted of first-degree murder and sentenced to life in prison without the possibility of parole.

Many people at the time suggested that Erik and Lyle had killed their parents to access their inheritance, despite the siblings testifying that they had suffered years of abuse at their hands. and Ian Brennan tackle the story of the brothers who fatally shot their parents, José and Mary Louise "Kitty" Menéndez, at close range in their Beverly Hills mansion. While police initially suspected the mob's involvement due to the gruesome nature of the murders.

The brothers, who were 21 and 18 at the time, told police they found their parents shot dead at home. Following their parents' murders, the brothers were seen spending their inheritance extravagantly on Rolex watches, real estate and more. The police received a tip-off about the brothers' involvement when Judalon Smyth, the mistress of Erik's psychologist, Jerome Oziel, revealed there were audiotapes of Erik confessing to the murders during his therapy sessions.

Following the brothers' arrest for first-degree murder, there was a highly publicised legal battle involving two juries, two trials, and one mistrial. Lyle and Erik's legal team argued that the brothers killed their parents in self-defence and they both.