Drac is celebrating his 125 birthday and would like to retire and give the hotel to his daughter Mavis and Johnny. Learning that he would inherit the hotel, Johnny tells Drac about all the transformations that he would like to do, and Drac freaks out. He tells Johnny that only a monster can inherit the hotel. So Professor Van Helsing decides to help Johnny become a monster, but obviously, nothing really happens as planned. Using a ray, Johnny becomes a monster, that will mutate and become more hostile, and all the monsters, including Drac become human. The only way to turn the spell back is to find a crystal, which is in a cave in South America. After several adventures, they find the crystal, humans become monsters again and vice versa. In the meanwhile, Drac and Johnny have been able to bond and everything finishes ideally. Another cute Hotel Transylvania film.
“If you only see the worst in things, you’ll miss the best part. Here, look, look, look. At first a tasty marshmallow. Then… Oh no it’s on fire, it’s ruined. But blow out the fire and crack open the burnt stuff… You’ll find something sweet and goey inside. You just have to look for it.”