Build a movie plot around this: Who is Joe's friend? Seth
In 2044, the United States has suffered economic collapse, causing severe social decay and growth in organized crime. In addition, a strange mutation has occurred in 10% of the population, giving them minor telekinetic powers, manifested by their ability to float small objects. They are referred to as TKs. Thirty years into the future in 2074, time travel is invented, but is immediately outlawed. However, because by that point tracking technology has rendered it nearly impossible to dispose of bodies secretly, crime bosses turn to time travel to send their targets to the past (the movie's present) to be killed by "loopers": hired guns paid in silver to kill whoever is sent to them. The victims have bags over their heads, and silver bars strapped to their backs. This comes at a price: The severe sanctions on time travel mean that crime bosses eventually need to end a looper's contract, and also eliminate any traces of their working relationship, so they send his older version back to be killed by his younger self, referred to as "closing the loop", which each looper must do himself. They're paid in gold for this, to live the rest of their lives in comfort.Joseph "Joe" Simmons (Joseph Gordon-Levitt), 25, works for a mafia company in Kansas City as a looper. Joe's boss, Abe (Jeff Daniels), was sent back in time to manage the loopers and also owns a club where Joe frequents and spends time with Suzie (Piper Perabo), a showgirl. Abe also controls the "Gat Men," his muscle, led by Kid Blue (Noah Segan). Gat men are so named for their magnum revolvers, which have greater range and accuracy than a looper's 'blunderbuss' shotgun; a weapon designed strictly for close quarters.While at the club one evening, another looper announces that he has just closed his loop. The big payoff in gold is reason to party. As Joe continues his work, he and the other loopers begin to notice that loops are being closed at an increasing pace.One night, Seth (Paul Dano), Joe's friend and a fellow looper, visits him in a panic telling him...