Hadley Jamison doesn't know what to think when she hears that her classmate, Archer Morales, committed suicide. She didn't exactly know him, but that doesn't stop her from feeling like there was something she could have done to help him. So to Hadley's surprise, on the very night of Archer's funeral, she has a run in with Death himself and is offered the chance to go back in time to stop Archer from ending his life. The catch? She only has twenty-seven days to do it. And if Hadley doesn't succeed? Well, she doesn't want to think about that.

It was pity that first made Dannie speak to him. She had known Ryan since she was a kid, but he had always been the popular Golden Boy, and she had always been the tomboy that didn’t mind not having any friends. It was odd, she had thought, that all the popular kids who had once kissed the ground he walked on, didn’t so much spared him a glance anymore, and it was this that made her sit with him that one faithful day and begin something that would only end up causing her pain.