Nurse Diary: Wicked Finger (1979)

Original title: 看護婦日記　いたずらな指

Ryoko leaves the chaos of her dorm for the peace and quiet of her own place because she wants to keep her relationship with a doctor at Murata Hospital a secret. Unfortunately, that privacy is short-lived as she discovers a “peeping tom” next door neighbor that spies on her all the time. When the doctor’s wife learns of the affair, poor Ryoko gets caught in a web of jilted lovers, frisky lesbians, slapstick sexual assault and embarrassing incidents with household appliances.