In a world where time travel has been perfected, mobsters sends targets back in time to be eliminated by assassins in the present, thus removing all traces of the body. But what if the target you were sent to kill, was yourself?

In a world where time travel has been perfected but made illegal, “Loopers” work for mob bosses to eliminate targets who have been sent from the future, thus eliminating all trace of the target. When one Looper recognizes his target as his future self, he goes on the run from the very mob bosses for whom he once worked.