[1][2] At the end of the 70s, psychopath Kenneth Bianchi (C. Thomas Howell) lives with his mother Frances (Roz Witt) and is obsessed with joining the police force.
When his application is refused, his mother sends him to Los Angeles to live with his sadistic cousin Angelo Buono (Nicholas Turturro).
Kenneth unsuccessfully tries to join LAPD, and Angelo convinces him to start a prostitution business with him.
They force Erin (Jennifer Tisdale) and April (Jessica Allegra), two girls from Tucson to work for them, but when they intrude on the territory of another prostitution ring led by Ronnie (Damon Whitaker), their business is destroyed and their money is stolen.
The two cousins become addicted to murder, initially killing prostitutes and then attacking single women, dumping their bodies on the hill.