In Time tells the story of Will Salas, a factory worker living in a future world where genetic engineering has allowed people to stop aging on their 25th birthday, but in turn, gives them only a certain amount of time to live, controlled by a clock on their forearm. Time has become currency in this future, with those wealthy enough able to live forever while the poor often "time out" and die. When Will suffers a devastating loss, he swears revenge on the wealthiest people in society, vowing to bring down the system. Justin Timberlake stars as Will, alongside Amanda Seyfried, Cillian Murphy, and Alex Pettyfer.