It was pure luck that Hannah Avery was driving on the same bridge that Tristan Hunter was ready to end his life by jumping off of. They had never really been friends, but were both aware of the other's existence. Now this horrific event has bound them together - something that neither of them is quite prepared for.

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.