When a Manhattan millionaire heiress vanishes from her Upper East Side mansion, friends, staff and investigators are baffled. Soon, leads uncover a mysterious tenant who moved into her mansion weeks earlier. What unfolds is a trans-continental story of swindling, arson and murder. Plus, a twisted relationship between a diabolical woman and her young, henchman son. Catch "American Greed: Deadly Rich" Monday 10P ET/PT.