Aired: November 19, 2004 | Season: 3 | Episode: 8

Overview
Runtime: 44m
Directed by: Timothy Busfield
Written by: Hank Steinberg
Guest stars: Ana Maria Jomolca, Bill Smitrovich, Brian McLaughlin, Claudette Nevins, Daniel Graves, Jane Fleiss, John Cothran Jr., John Patrick Hayden, Kyle Steven Templin, Lisa Marie Zaura, Peter Macon, Roy Lee Jones, Sam Vance, Susan Merson, Todd Louiso, Tony Goldwyn
Description
When a homeless woman disappears from a shelter, the team is forced to re-examine the case of twin brothers Greg and Rick Knowles. Five months earlier (Doppelganger), Greg Knowles had confessed to a series of brutal murders, but the team was always convinced that it was Rick who had actually performed the killings. When Greg is released from jail and exonerated of the crimes, the team has to work against the clock to prove that Rick is the guilty party and to save one twin from the other.