S6, E8: A woman finds her neighbors brutally murdered in an apparent robbery attempt. Fourteen years later, that same woman attends a parole hearing for Max Barton, the man arrested for those horrific murders. Testifying at the hearing is Monk, who led the investigation fourteen years ago. Monk wants to make sure that Max Barton stays behind bars, but during Monk's testimony, a young lawyer arrives with some shocking news. A new DNA test of evidence found at the crime scene has exonerated Max, and he will soon become a free man. Monk is consumed by guilt. He's never made such a grievous mistake -- putting an innocent man away for fourteen years. He reaches out to Max but Max refuses to forgive Monk. Nevertheless, Monk wants to make things right.