Yuriko comes for a part-time job interview as a housemaid. What started as a simple discussion about work takes a wrong turn when she accidentally agrees to live-in employment. While cleaning the bathroom, she's suddenly drenched with the shower and before she knows it, a vibrator is inserted without warning. Caught hiding in the restroom, she's forcibly made to urinate. Eventually, she's assaulted and sexually dominated—but strangely, it seems as though she's beginning to actively desire it. Behind her reactions lies an unexplained transformation that's slowly taken hold.