Akira Kakigaoka was a lucky man with a happy family, but he fell into an affair with Yukiko Shiraishi. Yukiko refused to have an abortion after becoming pregnant, so Kakiqiu carefully planned a bizarre experiment to get out of trouble. He spent a lot of money to build a laboratory in his mansion, intending to use the principle of object vibration to cause Yukiko to have an abortion. When Yukiko stepped into the laboratory, Kakioka started the vibration device, but things did not develop as he expected. Yukiko suddenly suffered a miscarriage, and Shiqiu also suddenly fell seriously ill that night. After Shiqiu died, his wife Wu Zi fell into pain. At this time, private detective Homura Roku suddenly appeared. Why did he come? What kind of unknown secrets are hidden behind it?