This work, "The Inugami Family," is one of the finest masterpieces among Yokomizo's many works.

The founder of the Inugami Zaibatsu, the wealthy Inugami family, has died.
His illegitimate children, grandchildren, and the appearance of a third party have finally begun a bloody inheritance struggle. The axe, the koto, the chrysanthemum—a horrifying murder case reminiscent of the three sacred treasures passed down through the Inugami family. Who will be the third victim?! And what do the brightly colored poppies adorning the corpse signify?! Kindaichi Kosuke approaches the chilling truth hidden within the Inugami family! The seal of a cursed bloodline is about to be broken—a masterpiece that sparked an unprecedented boom in Yokomizo Seishi's works!