My Pet Monster is an animated series about a young boy, named Max, who goes to a toy store looking to purchase a new toy in the hopes that he will find a new best friend. What he finds is an odd looking monster with a pink face and purple body which also happens to wear mysterious cuffs around its wrists. At home, Max inspects the cuffs and attempts to remove them. In succeeding, he watches in amazement as his curious looking toy magically comes to life; growing six feet tall and having an appetite for garbage! What ensues shortly after are a series of unpredictable adventures involving Max, Monster and many of their friends, as they try to maintain the secret of Monster's existence and keep him from being dragged back into Monster Land through a dimensional door by the villainous Beastur.