For a stand-alone episode, this was pretty fantastic. Peter Boyle guest-stars as an insurance salesman who also reluctantly deals with having psychic powers. Mulder and Scully begin using him to try and find this serial killer who's killing off people who read crystal balls or read Tarot Cards and other similar things. However, they soon learn that he isn't necessarily psychic. Instead, he can see how people will die and uses that power to infer certain things. Clyde Bruckman ends up being a very strange guy but compelling as hell to watch. Peter Boyle may have delivered the best guest-star performance of the show here... it's subtle but excellent.
It also had its fair share of humor mixed in with the eerieness and sadness; the psychic at the beginning that calls out Mulder's negative energy is hilarious, and for a show that's so dark at times, they can really bring out the laughs.
The episode was written by Darin Morgan, who also did the Humbug episode with the circus freaks. Darin Morgan seems to be really good at combining the dark/macabre and the humor. Hopefully he writes more episodes in the future.
This was a pretty great episode, and along with the previous few episodes, it's a good sign that Season 3 of The X-Files may be even better than the rest of them so far.