Still, I Love My Wife (2011) +18

Original title: それでも妻を愛してる

* Based on erotic game by Lune TeamBitters Nanami is happily married. While using a public bathroom, she is caught on camera by the building manager, Kamata. Using the video footage as blackmail, Kamata now has complete control over her, and Nanami soon finds herself enjoying the sexual acts she is being forced into.