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 telling his story in a documentary.
As the prosecutor's office tries to solve the case, shocking new details emerge about Michael's past that threaten to derail the defense.
After an unexpected visit, an important discovery rocks the Peterson family.
In the wake of the ruling, the Petersons struggle with the court's decision, and Michael finds solace in an unlikely friendship.
In 2006, Sophie pursues a new theory about the night of Kathleen's death. In 2017, Michael attempts to bargain his principles for his freedom
After a body with injuries similar to Kathleen turns up at the county morgue, Sophie continues her quest to uncover what really happened to Kathleen.
Seventy-three-year-old Michael faces a life-altering decision. On the other hand, Martha and Margaret share long-buried truths.