Dr. Hattori and her husband watch footage of brain surgery experiments with Manchurian, Russian and Japanese guinea pigs that had been found in the basement of a wrecked hospital. Out of the blue, there is a white light and when they look back, they see they children Ota Miyuki and Kaori staring at the light. Years later, Miyuki vanishes from the Tama Medical University Hospital and her sister Kaori, Miyuki's boyfriend Motojima and detective Hirasawa are seeking her. However, Miyuki and the teenagers Kazochi, Takumi, Hattori and Rieko have been submitted to a nightmarish experiment by Dr. Hattori and her team with tragic results.

The Sylvian Experiments

In Mahoro, the fictional suburb of Tokyo, Tada works as a general problem solver for hire. One day, former classmate Gyoten appears unannounced. Both men are over 30 years old and divorced. With no explanation, Gyoten suddenly asks to spend the night at Tada's home. Eventually, Tada accepts Gyoten as his assistant and together they become involved in various cases concerning an assortment of people from different walks of life.

Tada's Do-It-All House

Hibari leaves the house to go to the accident site where his son died months earlier. It's morning, it's raining, Hibari has brought her baby's umbrella with him. On the way he meets a man drenched in rain and helps him. And when he opens the umbrella, as in a vision, the memory of the son migrates to man.