A brand new true crime documentary is creeping out viewers so much they're scared to sleep after watching it.
Netflix's The Sons of Sam: A Descent Into Darkness dropped on Wednesday and it delves into the crimes of serial killer and arsonist David Berkowitz, who murdered six people in 1977.
You can watch the trailer for The Sons of Sam: A Descent Into Darkness below:
Berkowitz claimed he was motivated by demons and went by the self-proclaimed 'Son of Sam' - hence the title of the doc. The name stemmed from his belief that a demon lived inside the black Labrador of his neighbour, Sam Carr. When he committed his crimes, he would write to local newspapers and sign his letters from 'Son of Sam.'
He soon became known in the media as the '.44 Caliber Killer' because he used a 44 caliber Bulldog revolver gun to kill his victims in this attack.
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Produced by filmmaker Joshua Zeman, the four-part series draws upon archived news footage and conversations with people closest to the investigation including journalist and 'Ultimate Evil' author Maury Terry.
As viewers binge the documentary series, some have detailed how unnerving the case is, with one person writing: "Well I ended up watching all of #SonsOfSam in one go. Compulsively propellant and creepy."
Another viewer joked about only being able to think about the details of the case when trying to sleep. "Me: gonna start prioritising sleep #selfcare also me: inhales all of #SonsofSam in one go."
They followed-up their tweet with the infamous meme of Love Island star Chris Hughes struggling to sleep in the villa.
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It appears lots of viewers can relate, with a third sharing: "Watching #SonsofSam hoping I'll be able to sleep."
After the largest manhunt New York City had ever seen, Berkowitz was arrested in August 1977 - 11 days after committing his last crime. It was thanks to a parking ticket on his car, which was found near to the scene of one of the shootings, that he was brought in by police.
After pleading guilty to eight separate shooting attacks in New York City - killing six people and injuring another ten - he was given six life sentences in June 1978.
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The Sons of Sam: A Descent Into Darkness is available to stream on Netflix now.
Featured Image Credit: NetflixTopics: TV and Film, True Crime, TV Entertainment, Netflix