After a tragic car accident where his girlfriend Ryôko Ooyama (Nami Tsukamoto) died, Hiroshi Takagi (Tadanobu Asano) suffers amnesia with his memories completely blanked. When he sees a book about dissection, he decides to join the medical school with the support of his parents. In the dissection class, his group participates of the autopsy of a young woman, and while cutting apart the tissue, he partially recalls his accident. Later, when he sees a tattoo in the arm of the corpse, he discloses that she was his girlfriend and becomes obsessed to go further in the examination of the body.
—Claudio Carvalho, Rio de Janeiro, Brazil