Plot summary
A narcissistic young man, Mark Dietrich ( Adam Storke ), is recently paroled after serving 15 years for strangling a young woman to death. A short while later his mother is murdered and Goren and Eames uncover that his mother suspected Mark had raped a woman some years earlier and that the investigating detective, Ted Marston ( Mike Starr ), had framed four innocent youths for the attack. They eventually charge Dietrich for the rape and Marston for the murder of Mark's mother.
Credits
Adapted from Wikipedia contributors, Law & Order: Criminal Intent season 2. HTML formatting and reference markers removed.