Yanet Lugo, a woman who has believed for far too long that she will never find her true love. She is usually shy but very protective of those she cares for and love. Joe Sinclair, a handsome, hardworking middle aged man, who has given up on finding true love, is known to date young beautiful, self-absorbed women. During a night out with friends, Joe and Yanet meet. There is an instant attraction, which takes Joe by surprise, because Yanet is pretty and a full figured woman. Yanet tries to keep Joe at arm's length, believing that Joe could never fall for her. Eventually, Yanet gives in to Joe's Scottish charms and is happier than she has ever been. The two discover that they are truly soul mates.
Joe's identical twin brother, Dr. Joshua Sinclair, a highly respected Neurosurgeon saves the life of a young girl, who then becomes obsessed with him. Her obsession becomes deadly and not only threatens Joshua's family, but it also threatens Joe and Yanet's happiness.
Will this deadly obsession forever separate these Twin Hearts?