First of all, NOBODY LOVES A CLOWN. NOBODY.
Right. Now that's out of the way, let's get to the episode. Medford, Wisconsin. A young girl looks excitedly around a carnival while her parents look bored. She gets excited about clowns, and her dad's all "NOPE." She waves at one particular clown, which waves back, but neither of her parents can see it. Cut to them driving home. She sees the same clown out the car window. Cut to her getting out of bed that night and seeing the clown standing on her back lawn. She goes downstairs and lets it in because SHE'S A FUCKING IDIOT.