After the death of her father 11-year-old Momo and her mother move to a remote island to live with her grandparents. Her mom isn't much at home because she has to commute to work every day and the two generally are quite estranged since the father's passing. Furthermore Momo has a hard time making friends in the new environment until one day she hears strange noises in the attic which turn out to come from three peculiar creatures that only the girl can see. They seem pretty mischievous but are they looking to hurt or to help the girl?
'A Letter to Momo' is a delightful anime that admittedly is quite a bit like the great 'My Neighbor Totoro', but it feels nothing like an uninspired rehash, in fact I liked this one even a bit better. As far as "substance" goes this is pretty slight but the story here is secondary to the gorgeous animation that feels very alive, every moment is lovingly animated with brilliant attention to detail to movement and the smallest of gestures. It has a captivating, consistent summertime atmosphere to which the rich sound work contributes almost as much as the animation.
This very much starts out as a slice of life drama until the monsters come into play at which point the film becomes really funny. But even though the antics of the creatures are hilarious and those guys are pretty crazy the character of the girl is well-fleshed out and she remains wonderfully real. The third act is mostly a very dramatic tearjerker. If this sounds like the film is all over the place or the tone is inconsistent, it is not. All the elements work together smoothly and it's a well-rounded experience. It is excellently paced but it does take its time and at two hours it might run a bit long. If you are a fan of slice of life anime with supernatural/magical elements this definitely comes highly recommended. Also suitable for your small ones.