What if you had only one day to change absolutely everything? Samantha Kingston has it all: the perfect friends, the perfect guy, and a seemingly perfect future. Then, everything changes. After one fateful night, Sam wakes up with no future at all. Trapped reliving the same day over and over, she begins to question just how perfect her life really was and to learn that also a single day can make a difference, not just in her own life, but in the lives of those around her.