In 2001, author and aspiring local politician Michael Peterson is charged with murder after the suspicious death of his wife Kathleen.

While working on his defense, Michael considers an opportunity to tell his story in a documentary. Caitlin wrestles with doubts.

As the DA’s office attempts to solidify their case, shocking new details surface about Michael’s past that threaten to derail the defense.

After an unexpected homecoming, a critical discovery rocks the Peterson household. Michael’s fate hangs in the balance as the trial ends.

In the aftermath of the verdict, the Petersons struggle with the court’s decision, and Michael finds solace in an unlikely friendship.

In 2006, Sophie pursues a far-fetched new theory about the night of Kathleen’s death. Michael must choose his principles or freedom.