The film was much different from what I was excepting from hearing the name, Osamu Tezuka.
Characters were: A mermaid (which is a small fish), a boy, boy's parents, and a large number of police. The boy is living in a country which doen't allow their people to do imaginations, however, he is a one who is being seized by wild fancies.
The boy hopes to look at the mermaid for long and wants to show it to others. However, it is just a fish in the real world, so no one can see the mermaid. The boy's parents want him to be released by a awful imaginations and ask the police for help.
The conglict is that the boy sees a fish as a mermaid. Others (his parents and police) trys to make him say that what he saw was just a fish. Although the boy went through many experiments, none of them could have changed his mind. Then, police started to do much harsh things to the boy in a jail. The boy got so tired after many tests and was not able to remenber what he was believing. One day, He got out of the jail and went back to his house to see what it really was. He figured out that there was not a mermaid, just a fish.
In the end, the boy went back to the beach and brought the fish back. It seemed to end peacefully, however, the police came to get the boy back to the jail. The boy took the fish quietly and killed himself in the ocean. After his death, I guess the boy became a mermaid and had a happy times with the mermaid. Sadly, I think the police were seeing just two fishes which were jumping out of the surface of the sea.
