Of the dozen or so thriller episodes featured on DS9, this may be the most claustrophobic and intense. Taking place on a dark, derelict station, several Starfleet officers including Nog and O'Brien are hunted by a series of psychopathic, murderous Cardassians. The twist, of course, is that one of those psychopaths is played by Andy Robinson's Garak.
Now, this kind of story isn't anything new - it's been used in countless horror movies, and contains a lot of the same cliches. But because of the history of the characters, there's a depth here that lifts it beyond the genre of cheap scares. (Though there are some of these two - I was on the edge of my seat even after repeat viewings.) We know the Chief's history and we know Garak's history - and that makes for compelling TV. The obviously-soon-to-be-dead engineers are given enough depth that their deaths are genuinely unsettling rather than just routine.
A classic episode.





