Nearly 60 years since a serial killer started targeting couples rendezvousing on the outskirts of Florence, a new Netflix series is investigating the shocking string of crimes.
On a summer night in August 1968, mason worker Antonio Lo Bianco and homemaker Barbara Locci were shot to death with a .22 caliber handgun in Signa, a small-town west of Florence.
Her older husband, Stefano Mele, was eventually charged with murder and spent six years in prison.
But, while he was behind bars, another couple were murdered with what was suspected to be the same gun, with it soon emerging that other lovers of Locci could actually be the perpetrator.
Over the next 17 years, another 14 people were killed in similar circumstances. The Monster then became known as the first modern serial killer in Italy