This is so strange movie for me. And maybe it can be interpreted in various ways.
Setting is somewhere in a developed city. A restrained man found a strange creature.
I think the theme of this movie is related with suitable places for every thing.
Although the strange, doglike creature looks inappropriate for the man's city and is treated as a foreign body, the man took it to its bright, comfortable place for the lost thing.
I think it means that everything has an suitable place and role, even if you cannot be suited to your community or society. When the lost thing found the place, the room was filled with great vigor. But in fact, we usually have a hard time trying to find the most suitable place, just like the eccentric man who couldn't make full use of his talent.
