Madonna's exclusive actress Chihiro Akino takes on the challenge of a full-scale suspense drama for the first time! A woman's corpse was found at a certain hot spring inn... Investigator Chihiro is involved in this case that everyone thought was a suicide. Chihiro infiltrates the inn as a proprietress because she can't throw away the line of murder. The dangerous act that even fellow investigators take their breath away is related to a certain incident in which her husband died. Meanwhile, the second crime occurs as if to mock. As danger gradually approaches, how will the investigation go? ?
