In the late 1970s, Los Angeles was the serial killer capital of the world. But no one terrorized this metropolis as much as the Hillside Strangler, a man who struck without warning, abducting, raping, and murdering a dozen women and girls, leaving their bodies like macabre trophies scattered across the hillsides. These crimes sparked the largest manhunt in LA's bloody history, led by the tireless Detective Frank Salerno. Now, for the first time in over 40 years, Frank Salerno tells his story and reflects on the case that changed him forever.