On a warm September afternoon in the year 2000, Dr. Alexander Sinclair travels to the Doppelganger Genetic Cloning Facility near Santa Fe, New Mexico to meet with its brilliant but mysterious director, Dr. Karl Helmick. Over the next 21 years, the two scientists collaborate on incredible scientific breakthroughs, as Karl becomes friend, mentor, and father-figure to Alexander. But the longer Alexander knows Karl, the more aware he becomes of how little he knows about him. As the years go by, Alexander becomes increasingly suspicious that his colleague is not who he appears to be. And as Karl prepares to implement his plans for the future, each of the men discovers just how far he is willing to go to live forever.