A 7-year-old rental apartment building located a 7-minute walk from the station, close to the city center yet offering a well-maintained living environment, complete with furniture and appliances. A male employee working for the company managing this popular property gives in to his hidden, malicious desires one night. Obtaining the strictly guarded master key, he infiltrates the rooms where women live. His target is a young woman, estimated to be 21 years old, seemingly a student. After returning home, she changes into a business suit and chats on the phone with a friend about job briefing sessions, dressed like a typical female college student. After finishing the call, she drinks a beverage laced with a drug, and loses consciousness while still wearing her suit. The man crawls out from under the bed and begins molesting and raping the unconscious woman.