20th Century Fox has bought the children's pitch, The Devil You Know from Steve Bencich and Ron Friedman.

Shawn Levy will produce the film through his 21 Laps company, which is based on the children's book by Nathan Hale that revolves around the Fell family and the little devil that lives in their house. The Hollywood Reporter adds the Fells grow impatient with the demon, who does all sorts of bad things. When the prim and proper Ms. Phisto mysteriously appears and offers to remove the little devil and take his place, the Fells wind up with more than they bargained for.

No production schedule has been set for The Devil You Know.