Arguably one of the best episodes of Deep Space Nine
and a jewel in the entire Trek
canon (it was shown during the Museum of Television and Radio Broadcasting's Tribute to Excellence in 1994), "Duet" is a powerful and moving tale about the apparent capture of a notorious war criminal. When a middle-aged Cardassian (Harris Yulin) arrives on the station to receive medical treatment, Major Kira (Nana Visitor) accuses him of being a monster named Gul Darhe'el, the "Butcher of Gallitepp," who killed thousands of Bajorans at a notorious labor camp. What ensues is an incendiary exchange between Kira and the imprisoned Darhe'el, in which he boasts provocatively of his crimes and strikes a nerve in the major by accusing her of ignoring the pain and deaths she caused as a Resistance terrorist. Seeing red, Kira keeps returning to Darhe'el for more verbal combat, but Sisko (Avery Brooks) and Odo (Rene Auberjonois) suspect something is amiss.
Pitched by a couple of interns on the show as a Judgement at Nuremberg-like courtroom drama, "Duet" was instead given a Man in the Glass Booth spin by writers and coproducers Ira Behr and Peter Fields. Ironically, the episode was made during a state of end-of-the-season exhaustion and under a frustrating mandate to shoot cheaply. Yet the result is stellar, a morally and politically complex drama. --Tom Keogh
From the Back Cover
A Kobheerian freighter arrives at the station carrying a Cardassian passenger suffering from a medical condition known as Kalla-Nohra. Upon seeing the visitor, Major Kira (Nana Visitor) immediately arrests him, citing that the only place he could have contracted Kalla-Nohra was at Gallitepp, a Bajoran forced labor camp. Though he denies the accusation, the Cardassian, tentatively identified as a teacher, is held captive while Kira investigates his background.
A photograph from Bajoran archives reveals that this teacher is actually Gul Darhe'el, the "Butcher of Gallitepp". When Kira confronts him with the information, the Cardassian says it's true - but an even deeper secret remains!