After Billy wakes up from another nightmare involving clowns, he is more terrified than ever towards them, so Mandy and Grim try to cure him of this clown-a-phobia. Mandy asks Grim to bring to life a clown's head made on paper mache to entertain Billy, but the spell does not seem to work. They dress up as clowns in an attempt to look harmless. After consulting with his imaginary "Inner Frat Boy", Billy changes his feeling from being afraid to being angry at clowns, and attacks them with Grim's scythe. Billy is cured of his fear, but the paper mache clown attacks and eats them.

Cuando Billy tiene payasofobia durante un sueño, Mandy y Puro Hueso intentan quitársela usando una técnica graciosa, pero Billy aún tiene miedo ya que Puro Hueso y Mandy verdaderamente se disfrazan de payasos para sorprenderlo, y no le queda más remedio que acudir a su amigo imaginario para superar su pesadilla.