Agent Mulder is out investigating reports of strange lights in the night sky when he learns from the local Sheriff that there is another death in town from killer cockroaches. Intrigued, Mulder tags along and a series of deaths ensue with witnesses all claiming the dead body was covered with roaches, though none are to be found by the police arrive. When he learns that there is a local experiment going on, Mulder meets the entomologist involved, the rather attractive Bambi Berenbaum. The answer however, lies with other tests going in town. Throughout, Mulder keeps in touch with Scully who seems to have a logical explanation for everything that's happened so far. As people in the town begin to panic, Scully travels there and joins Mulder to get the poop on just what is going on. Written by
Did You Know?
Cast and crew members later recalled that Kim Manners began giving orders to the roaches. Cinematographer John Bartley explained, "When I saw Kim Manners talking to a bucket of cockroaches, that was a highlight for me." See more
Scully tells Mulder that "...the flush toilet was invented by a man named Thomas Crapper..." This is an urban legend that has a ring of truth. There was a man tamed Thomas Crapper (1836 - 1910), and he was a plumber who founded Thomas Crapper & Co. He made a number of useful improvements to already existing flush toilets which did much to increase their popularity. However, the invention of the flush toilet itself dates back to 1596 and the first British patent was granted in 1778. Another urban legend is that the words "crap" and "crapper" (the latter meaning toilet) derive from Thomas' last name, but both words were in use before he went into business. See more
I'm not going to ask if you just said what I think you just said, because I know it's what you said.
Just before the closing credits roll, after the final "chord" and display of exec Producer Chris Carter
, there is a clear "whirr/chirp" like that the roaches in the episode made. See more