The story centers on an elderly hibakusha, whose husband was one of 80,000 human beings killed in the 1945 atomic bombing of Nagasaki, caring for her four grandchildren over the summer. She learns of a long-lost brother, Suzujiro, living in Hawaii who wants her to visit him before he dies.
Kôsuke Kindaichi, a somewhat peculiar private detective, visits a remote town. He meets a police detective and they start to investigate an old unsolved murder. Then some murders happen. Kindaichi must find out about the past in order to reveal who the murderer is.
When an only child is struck by a car and dies, the child's mother seeks vengeance against the driver in this thrilling drama. The car was driven by the wife of a company president who is having an affair. The woman's husband manages to buy silence about the incident, but the victim's mother discovers the identity of the driver. After she secures a job in the home of the company president and his philandering spouse, the woman plans to murder the couple's son when he reaches the age of her late son.
A woman and her daughter are in love with the same man, a chef at the restaurant that the mother manages. He is slightly crippled from frostbite in his years in Siberian labor camps and considers himself "already dead."
