[Machine Translation] A black cat, which was scavenging garbage bags in an apartment building's garbage dumpster, nibbled on a human's finger. Kuniko witnessed the incident and consulted her husband, a magazine reporter, but he seemed skeptical. She checked with a nearby hospital, but found no patient with a finger cut off, suggesting that it might be the cat secretly kept by the young man in room 410... This is a collection of masterpiece mysteries, including "The Criminal Next Door," which depicts the malice that lurks in everyday life.