In a not-so-distant future, humanity has found a way to escape the real world through technology. In this highly advanced society, most people live remotely, controlling identical robots of themselves, known as "substitutes." These androids allow people to experience life without the fear of injury or death, living through their perfect and ever-attractive versions. However, this seemingly perfect lifestyle comes at a cost.
FBI agent Tom Greer, a man who has been grappling with the pain of loss, finds himself caught in the battle to uncover the truth behind a series of murders that begin to occur, causing substitutes to shut down and their controllers to die in the process. As Greer delves deeper into the investigation, he starts to question not only the safety of his own life but also the nature of his existence and the effects of this disconnection from reality.
As he embarks on a thrilling hunt for the perpetrator, Greer is forced to step out of his comfort zone, disconnecting from his own substitute and facing the world as it is. In his quest for justice, he makes decisions that will lead him down a dangerous path and to an inevitable confrontation that will reveal the hidden truths of a system that many take for granted. How far would you go for your real life?