Sara arrives at the hot springs inn with her old college friend for a long-awaited trip. Her husband, happy to see her off, lets her go with a carefree attitude. She arrives at the inn in high spirits. However, while she's alone in the open-air bath, she's ambushed and raped by the innkeeper who was waiting for her. Though she hesitates about confiding in her friend, the next morning her friend falls ill and has to go to the hospital. The innkeeper, with an evil smile, says, "So, it's just the two of us today?" and ties her up...
