UNSOLVED Mysteries returned to Netflix today with a second season full of mind-boggling cases.
The follow-up episodes come after the streamer's first six cases captivated the world earlier this year, with some cold cases even being reopened after new evidence was unearthed.
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Much like in season 1 the array of investigations are extremely varied in nature, with topics including a lady in a lake, tsunami ghosts, stolen kids, a death in Oslo, the Washington Insider Murder, and a death row fugitive.
The most eager of fans have already started working their way through the episodes and were left more than a little disturbed.
They took to Twitter to air their thoughtd about the new series, which they claimed was "even freakier" than its predecessor.
One user wrote: "Started season 2 of Unsolved Mysteries and already know I'm not gonna sleep tonight," alongside a wailing emoji.
Another added: "Okay I'm only a couple of episodes in but Unsolved Mysteries is even weirder and freakier this time around [in my opinion]. Nightmares inbound [shaking my head]."
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A third added: "Nah this is straight-up nightmare fuel #UnsolvedMysteries."
While a fourth exclaimed: "Goodbye sleep, hello Unsolved Mysteries season 2!"
Hype for Unsolved Mysteries began building earlier this month thanks to a seriously cryptic trailer.
The clip begins with a woman lighting a candle to a backdrop of creepy music, while a voiceover asks: "Why is it important to find out why a person died 25 years ago? People die all the time.
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"I think it's important for the family to know what happened," the man adds.
The trailer then features various family members talking about how there are so many missing links in their individual cases.
One woman is heard saying: "You want answers but you don't have any," while another person says: "The footage is haunting."
Unsolved Mysteries season 1 and 2 are available to stream in full on Netflix now.