7:00 PM, Aria's apartment. A meticulously prepared dinner sat on the dining table. A perfectly seared steak, a fresh salad, and a bottle of wine. Seated with Aria at this table was her neighbor, Elena. Aria had moved into this apartment three months ago. A 34-year-old office worker living alone, she lived right next door to Elena, a 52-year-old housewife who lived with her husband and daughter. Despite the significant age...