The movie contains not only a detective story, but also philosophical reflections on the truth and punishment for wine. An experienced lawyer named Sigamori, who is a top-level professional in his field, undertakes to protect a person named Mikumi. The client is accused of committing a murder of particular cruelty. Mikumi does not deny his involvement in the crime, fully confesses to the atrocity committed by him.
About thirty years ago, he was already brought to such a charge for committing a similar crime. He understands that punishment can not be avoided, because for such an act according to legislative norms he is subject to a death sentence. However, the lawyer is fully confident that in this case there are some clues that do not allow to consider this case so hopeless.