Nakama Yukie plays the role of a former swimmer Shiramine Ryo who is a home tutor rumoured to have caused the death of her student in a swimming pool 5 years ago. She commented that she was very excited about the filming. However, it was difficult to show the fear and guilt felt by her character as the others died one after another and she had to grapple with the thought of knowing that she might be next and face up to her sin. As such, it was a brand new challenge for her in this drama SP. In addition, although she had played Sadako in the 2000 movie "Ring 0 Birthday" where she was "beaten to death" and thrown into a well, this will actually be the first time in a drama that Nakama plays a character who will be murdered.
Co-stars include Watase Tsunehiko, Tsugawa Masahiko, Yo Kimiko, Yanagiba Toshiro, Daichi Mao, Mukai Osamu and Kunimura Jun who play the guests at the hotel while Hashizume Isao and Fuji Mariko will play the butler and his wife respectively.
Sources: Nikkansports / Sanspo / Sponichi / Oricon