May the Best Killer Win

What if there was a $1,000,000 winner-take-all-event for serial killers? Who would get the top seed? Dahmer? Bundy? Gacy? Ramirez? Wuornos? "BTK?" "Dr. Death?" Pick a killer, any killer. Enter a rich anonymous benefactor who was in search of not one but two serial killers-one male, one female-to compete against each other and he was willing to offer $50,000 per kill up to five million dollars total to get rid of some of the nation's most deserved scumbags. After several successful kills in Los Angeles, San Diego, Las Vegas and other cities, the anonymous benefactor turns the tables on the two serial killers-Brianna Barrington and Hunter Richards-and, ironically, hires other serial killers to try and murder them. While trying to stay alive, Bri and Hunter set out to seek revenge on Mr. Anonymous, which takes them to an unusual hidden location in a city they had never before seen.