The second season of 'Based on a True Story,' starring Kaley Cuoco and Chris Messina, premieres on Peacock on November 21, featuring eight episodes filled with dark comedy and suspense. Ava, portrayed by Cuoco, is navigating new parenthood while trying to distance herself from her true crime obsession, but her sister Tory's engagement to alleged murderer Matt reignites her investigative instincts. As new murders occur, Ava suspects Matt may still be involved, prompting her to team up with her new friend Drew, a detective, to uncover the truth. The trailer hints at a mix of humor and danger, including an underground sex party and tense stakeouts. Showrunner Annie Weisman promises a blend of dark humor and compelling character dynamics, while the series continues to explore the consequences of true crime fascination. The storyline will delve into the complexities of Ava's family ties and the impact of past events on their current lives.