It follows Monk, a brilliant detective with obsessive-compulsive disorder. He returns to solve one last case involving his stepdaughter Molly, a journalist preparing for her wedding.

Jodi Arias befriends Donavan Bering and Tracy Brown in prison, and they became inseparable. Donavan is released from prison before Jodi's trial and becomes her mouthpiece, posting on social media and defending Jodi. When the details of the case and Jodi's story no longer add up, Donavan refuses to continue her work, bringing out Jodi's vengeful side.