In May 2020, 26-year-old Melissa left home without warning and flew 2,000 miles across the country, leaving behind a note that said, "One day, Dr. Phil will be able to help me." Melissa's family says months before she left, she hadn't "been herself," but has no idea why she up and vanished. Melissa, who has written 393 emails to Dr. Phil, says she's finally ready to reveal the reason to her family, but feels he is the only person who can help. Today, Dr. Phil meets Melissa's parents, Donna and Mark, and then talks to Melissa one-on-one to discuss the dark secret she's been keeping.