It is about a man who becomes violent from kindness because of drinking, gouges out the eyes of his beloved black cat Bruto, and the black cat has been away from him ever since. Then the man hung the black cat on the branch. That night, the man's house caught fire and all his property was burned down. There is only a white wall with bas-relief on it. It is a cat with a rope around its neck. Although he explained it to himself with science, he was still afraid. Later, he brought back a cat similar to Pluto from the bar. The day after the cat was taken home, I don't know who gouged out an eye, which made him hate and fear the cat. One day he accidentally killed his wife, and then came up with a wonderful way to hide the body-build it into the wall. Later, he found that the black cat disappeared at the same time, and his heart was full of fear. There was a cat barking in the wall when the police searched his house. It turned out that he used his body to build the cat into the wall in a panic.
This novel has written a coherent subconscious mind, from irritability to guilt, from guilt to anger, from anger to evil to courage, from guilt to fear, from fear to irritability. In short, psychological description is progressive.