A looper is a hired killer. He has been hired by an unseen crime boss 30 years into the future, because when time-travel finally becomes possible, it’s too difficult to easily dispose of a dead body. So this crime boss sent a man named “Abe” (Jeff Daniels) back to the 2040s to hire some assassins. The work is easy, the victim arrives from the future at a specified time, at a specified place. The payment for killing and disposing of the body is several silver bars attached to the body.