Westworld

A high-tech amusement park for adults features three recreated historical environments - Medieval World, Roman World and West World - populated by highly realistic androids programmed to indulge the whims of every high-paying guest. The main attraction of West World is the Gunslinger - a robot programmed to start duels but who can always be killed by humans packing special guns. John and Peter, two buddies on vacation, wake up in a West World bordello after a night of brawls and booze, not yet knowing that a system-wide failure has infected the androids and placed them in mortal danger.