When Grady| an assassin with a genetic disorder that renders him unable to feel pain| is sent on a high-stakes assignment| his world is turned upside-down after anattack when he awakens to discover that he can feel pain for the first time in his life. With the clock ticking and his greatest asset gone| Grady will gohead-to-head with his greatest fears and unspeakable enemies| while experiencing a tactile world he never could have imagined.