The Doctor Who Disappeared

Michelle and Mark seemed to live a fairy-tale life. After an 18-month courtship, the couple married at a lavish ceremony on the coast of Italy. "I thought we were going to grow old together and be sipping lemonade on the porch with our grandchildren," Michelle says. "He really was my best friend."

Mark, a prominent sinus doctor, had a thriving practice outside Chicago. Michelle says the money poured in—as much as $200,000 a week. The couple enjoyed a private jet, an 80-foot yacht and frequent trips to Europe and the Caribbean.

After three years of marriage, Michelle says Mark prepared a once-in-a-lifetime surprise, flying friends and family to Greece to celebrate her 30th birthday. It was at this time that Michelle began to feel uneasy about her husband's behavior. "He was just agitated and crabby," she says. "He was being very secretive."

Michelle and Mark went to sleep in the cabin of their yacht. The next morning, everything she thought she knew about her husband turned out to be a lie.