Donna Andersen is author of Lovefraud.com, a website that teaches people how to recognize and recover from sociopaths. She learned about them the hard way—by marrying one. In two and a half years, the man defrauded her of $227,000, cheated on her with at least six women, fathered a child with one of them, and then, 10 days after Andersen left him, married the mother of the child. It was the second time he committed bigamy. Andersen tells the whole outrageous story in her first book, Love Fraud—how marriage to a sociopath fulfilled my spiritual plan.