The movie's disgusting features, which include multicolored pus, third-degree burns oozing earthworms, and lots of cutting, belie a truly unique story. It shows the hero's descent into madness, by way of the mermaid's decay. I guess it's like Splash, only no Tom Hanks and more postulant sores.

The story centers on a failed artist with a lonely existence. His wife developed stomach cancer and mysteriously vanished, leaving him alone in the world. In his loneliness, he ventures into the town sewer to find inspiration. On one such trip, he finds a mermaid. He notices she is wounded and takes her home, where he feeds her raw fish and decides to paint her portrait. Things worsen as he paints her; she develops large sores on her body (but not on her breasts, strangely). The artist, being the resourceful man he is, opens up her sores and USES THE PUS AS PAINT. The mermaid corrodes more and more as the story progresses; at one point, her eyeball falls from its socket.

Anyway, there's a twist at the end that I don't wish to spoil, since I advise you see all the pus-and-worm goodness for yourself. I'm sure there's a moral somewhere in there, too. Don't bring mermaids home and paint with their pus? Sewers are loaded with crazy shit (like dog and baby carcasses)? Mermaids are cannibals? It's probably one of those.