Thea Marshall had lived a normal life up until September 30, 2017. That's the day she first travels back to one of her past lives. Every day she begins to travel back to the past and after a few trips, she realizes that in every life she has crossed paths with David Matthews and Victoria Adams. When she gets stuck in one of her past lives, she discovers that her story is more complicated than she'll ever know and fate always has a cruel way of working itself out.