Saturn- or Sadie- is graced with the art of lying. She can tell if people are lying or telling the truth, along with making someone believe her when SHE'S really lying. Her life feels pretty normal to her until her talents begin changing and her destiny is shown to her. Now with the one boy she wishes she could just kill, they both embark on a adventure. Both girl and boy are tested to their greatest lengths, along with testing their hearts. As things become heated between the two and their mission, they are forced to spy, to explore, and most of all, lie to stay alive.