While walking to school one morning, Suzume meets an odd young man who asks for directions to a ruin. After pointing him toward a rundown building and continuing on her way, she starts to wonder about his identity and intentions. She hurries after him and finds a door standing in the middle of a wet patio. When she opens it, she sees another world beyond, but crossing over makes that world hers, while the other remains on its side. On the ground, she notices a small carving resembling a cat—certainly a cat! Suddenly, chaos erupts as a giant worm attempts to enter her world through the door. Fortunately, Souta also found the door and together they manage to close it with a magical key. He explains that numerous portals exist around the Earth and his job as a "closer" is to keep them sealed, or else the planet will be destroyed. The cat seems to have a specific role, and when it appears to curse Souta—transforming him into a yellow, three-legged chair (previously belonging to Suzume)—their investigations become somewhat comical as they rush from door to door, pursuing open wormholes and the cat while gradually realizing they might be developing feelings for each other. The initial thirty minutes are enjoyable, full of action and humor stemming from Souta’s mobility issues and establishing the story and characters. However, I felt it became repetitive after that point; the narrative seemed to recycle itself too often. Additional characters—her aunt, who she lives with, and a bar owner who offers her shelter—are introduced, but they don't significantly contribute to what feels like a short story stretched into a two-hour film that could have been shorter and more focused. The animation is vibrant and colorful throughout, and I did enjoy the visuals; however, as a story, it lacks depth as it approaches its conclusion. To their credit, the ending isn’t as predictable as one might expect, and it challenges the beliefs and feelings of everyone involved, as many assumptions we made during the story's progression are brought into question. By that point, though, I had lost some interest in Suzume as a protagonist.

Source on TMDB