Raquel is a girl who has nightmares and calls her parents to calm her fears. One night, her mother, Reyes, invents a story about a man who had two hearts, but the story continues to unfold only in Raquel and Reyes' dreams. The man with two hearts wants to discover who is his second heart, thus began an adventurous journey that will lead Reyes and Rachel to discover worlds that they have never imagined.