Maxwell Duncan, an ordinary high schooler, can see monsters, but he never thought much of it—until the first night of summer vacation. Monsters start chasing him for unknown reasons, and in the chaos, a mysterious bracelet falls into his hands. Compelled to wear it, Maxwell discovers it grants him the ability to transform into various monsters. Now, he must navigate a new world full of chaos and realize that being able to see monsters is the least of his problems.