Mulder and Scully move into a peaceful neighbourhood together posing as a newly married couple.
There is some sort of creature, maybe a swamp monster, attacking the residents.
Mulder gets the impression it's the neighbours that are behind the attacks so he decides to annoy them as best he can.
At some point Mulder puts up a basketball net in the drive way, he also does some other stuff to annoy them.
Eventually the neighbours summon the swamp monster to kill Mulder and Scully.