Eight year old Lucas would like to know how the Tooth Fairy exchanges coins for teeth without getting caught. He is determined to stay awake all night to find out. Meanwhile, a little mouse falls into a trap set by a dishonest contractor who is desperate to tell the world his secret, that the mouse is the Tooth Fairy. Lucas and his family has to do everything in their power to help the sweet little mouse with its mission, which since time immemorial, is to make children happy...

The Hairy Tooth Fairy is a delightful animated movie about a tooth fairy named Perez who goes on a magical adventure in a world filled with fantasy and anthropomorphic animals. With the help of a part-computer-animated mouse, Perez embarks on a mission to collect children's lost teeth and leave behind a coin. Along the way, he encounters various challenges and learns important lessons about friendship, bravery, and the power of imagination. This heartwarming tale is sure to captivate audiences of all ages.