Return to me / James Oliver French.

Kyle and Todd meet at a party in their freshman year at college. They fall in lust at first sight, then deep in love. In spite of Kyle's melancholy past, their future together looks bright. Then Kyle disappears, leaving Todd heartbroken and alone, and their dreams in ruins. Fifteen years later, Todd is a successful but lonely psychiatrist. He still hasn't come to terms with the loss of his first love. When a dangerous amnesiac arrives at the hospital, Todd is forced to confront the past, and is driven to find answers to the questions that have haunted him all these years.