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.

De férias da faculdade, Hannah decide passar o final do ano no apartamento do seu irmão mais velho que mora no Brasil. Hannah não vê Bryan a mais de cinco anos desde que ele foi para o Brasil a trabalho. Bryan mora no Rio de Janeiro com três garotos e uma garota em um apartamento enorme em Copacabana. Entre esses garotos, Felipe... E nessas férias a vida de Hannah vai virar de cabeça para baixo, a deixando totalmente confusa de seus sentimentos.