Baby Teeth bounces between two points of view: those of Hanna and her mom, Suzette. Hanna is a non-verbal little girl who has eyes only for her daddy — but Hanna's stupid mommy is always in the way, so Hanna tries every trick in the book to get rid of her. Suzette loves her daughter dearly, but they just never quite get along.
After Hanna is expelled from several schools, Suzette leaves her job to homeschool her daughter. The more that Hanna resents her mommy, the more sophisticated her antics become. All the while, Suzette's husband remains completely oblivious to the intentional harm that Hanna tries to cause.
This captivating, creepy story would make for an ideal horror film. In fact, it was optioned for a movie in 2019, but there doesn't appear to be an movement on the project.