While working on his defense, Michael considers an opportunity to tell his story in a documentary. Then, after learning shocking information about her stepfather, Caitlin wrestles with doubts.
Michael Peterson, a crime novelist, is accused of bludgeoning his wife Kathleen to passing after she is found dead at the bottom of a staircase in their home. As the investigation continues, the family is thrown into a tumultuous legal battle. Meanwhile, a French documentary team takes an interest in the story.