The Immortality Virus

In the mid-21st century, the human race stopped aging. Those who know why aren't talking, and the few who are brave enough to ask questions tend to disappear. To an elite few, The Change means long life and health, but to the increasing masses, it means starvation, desperation, and violence.

Four centuries after The Change, Grace Harper, a blacklisted P.I., sets off on a mission to find the man responsible for it all and solicit his help to undo The Change -- if he's still alive.