01E14 - Gender Bender

Mulder and Scully investigate a series of bizarre deaths, all of which involved healthy young adults who died of massive coronaries after having sexual intercourse. Mulder believes the heart attacks were brought on by massive amounts of pheromones though Scully is somewhat skeptical. The geographic distribution of the murders leads them to Massachusetts and a religious cult known as the Kindred. The sect allows them into the group provided they surrender their weapons. They are also upset to learn that one of them may be committing murders in the outside world. They have a secret however, one that will astound the open-minded Mulder.