68 Days(2015)

And then the 68th day came...

Kyoko, a high school teacher, was kidnapped and confined by a rapist named Seigo. Seigo steals Kyoko's personal information from her computer and kidnaps a female student named Miho. Thus begins the days of hell for the two of them. While alternately raping Kyoko and Miho, Seigo's magic hands are also directed at his classmate Junko. However, it was a forbidden act that exposed a certain "secret" that Kyoko and Miho were afraid of.