Death-Cast phones Mateo Torrez and Rufus Emeterio shortly after midnight on September 5 to inform them that they would die today. Mateo and Rufus are complete strangers, yet they each want to create a new buddy on their End Day for different reasons. The good news is that an app exists for that. Rufus and Mateo are ready to meet up for one final amazing adventure—to live a lifetime in a single day—through the Last Friend.