Don't Look Under the Bed is about a teenage girl named Frances Bacon McCausland (Erin Chambers), a girl who focuses on logic and realities. Strange things have been going on in the quiet little town of Middleberg. Dogs on people's roofs, alarm clocks going off three hours early, eggs all over the teacher's car, Jello in the swimming pool, and B's spray-painted all over town, including the lockers of the school—except for Frances' locker, which has a B inside it. All these weird pranks seem to point to Frances, but none of it makes sense to her.
The only person who can help her in this situation is a guy only she can see; Larry Houdini (Eric "Ty" Hodges II)(Fancis's little brother's imaginary friend). Larry tells Frances that she's being framed by the Boogeyman, and he seems to know what's going on better than she does. Frances has a difficult time believing what Larry tells her, because (due to her having to cope with Darwin, her little brother's, serious childhood illness) she's always tried to look at the world like an adult, using logic and facts to explain everything.
Over time, the Boogeyman's (Francis's old imaginary friend) pranks become more insidious and incriminating which further ruins Frances' life. Frances ends up losing her friend Joanne, making an idiot of herself when she tries to convince others of Larry's existence and having her family questioning her sanity. The two of them decide to put their heads together to get rid of the Boogeyman.
Erin Chambers as Frances Bacon McCausland
Jake Sakson as Darwin McCausland
Eric "Ty" Hodges II as Larry Houdini
Robin Riker as Karen McCausland
Steve Valentine as Boogeyman