Apartment Wife '98: Dangerous Affair (1997)

Voyeurism, eavesdropping, stalking, and sexual assault. Yuki, a newlywed living in a housing complex, finds her daily life gradually corrupted by abnormal sexuality... What kind of sex hell does this married woman fall into?! Yuki's past. A chance encounter with a man she met at the scene of a suicide attempt. After getting married, Yuki sealed that day away in her body and moved to a huge housing complex. However, the man from that time, Saito, appears and Yuki is embraced once again. Saito strangles Yuki. Yuki feels an abnormal excitement in the ecstasy of heading towards "death". But there was a man watching them. In exchange for a recording tape, Yuki is forced to undress and descends into a life of sex and degeneracy...