Odo recognises someone in the bar and has an altercation before Sisko arrives to bring it to an end. The man it turns out is a Bajoran criminal who he had arrested in the past. Later the man is killed in a hologram suite and so Odo begins an investigation.
Keiko O'Briens ponders what she can do for work, not much for a botanist before deciding on being a teacher for the stations nine children. Dr. Bashir tries to but fails to get close to Dax. Odo is taken off the case because he has a personal connection to the case.
It later transpires that the victim is a clone of the actual criminal which explains how only one strand of DNA was found in the hologram room.