Shelby lives alone up on the ninth floor of her city apartment. She is 36, single, never married, has a 9 to 5 job working as an economist for a large well-known accounting firm, she goes to the gym three times a week doing CrossFit to stay in shape. She is a mild-mannered, shy person who keeps to herself and does not socialize with anyone. There wouldn't be anyone in her apartment complex who would ever guess this innoce...