Someone always looks at me... A married woman who was peeked

Kanako has been married for eight years and is living happily with her husband in her new home she moved to two years ago. However, at some point, Kanako began to feel a gaze as if she was being monitored no matter what she was doing... One day, when her husband goes on a business trip, a stranger suddenly breaks in and Kanako is raped. Then Kanako was told, "If I told someone about this... I'll always be watching it..." and was toyed with by the man after that. I never thought I'd meet the man I met then...