Akechi's next case is to capture a man who wears a bag on his head known as Shadow-Man, a thief who is accused of kidnapping several girls. Shadow-Man is revealed to be the benefactor of one of the missing girls, Sachiko; he stole in order to pay for Sachiko's medical treatment. Working with Shadow-Man to draw out the real kidnapper, Kobayashi disguises himself as a girl and gets kidnapped himself. It is revealed that the kidnapper is a fat man named Watanuki, who murdered several of the missing girls by encasing them in concrete; those he did not kill, he kept as members of his "family." Akechi and officer Kagami arrive on the scene to arrest him.