Twenty-seven-year-old Sheila Culdeski has just lost both her boyfriend and her job as a CPA. While interviewing for one job after another, she doesn't believe her life can get any worse. Trying to maintain a positive attitude, she impulsively stops at a yard sale near her home in a Los Angeles suburb, where a metallic jewelry box catches her eye.

As she leaves with her five-dollar purchase, a strange man rushes up to her car and offers her as much as $300 for the unique box. When Sheila refuses, the stranger warns her that her life is now in danger. She has no idea of the history or the...