Count Dracula runs a secret monster hotel to protect his daughter, Mavis, from humans, but his plans are upended when a human named Jonathan accidentally discovers the resort and sparks a connection with her. Despite initial panic and deception, Jonathan brings joy to the residents, leading Dracula to confront his past fears of humans. Ultimately, after Jonathan leaves, Dracula realizes his mistake, brings him back, and accepts the human for his daughter, allowing them to explore the world together.