It's not too much of a stretch to say that Making a Murderer has taken over a pretty large chunk of our lives.

Whether you're a self-confessed true-crime nut, you have a best friend that's been chewing your ear off about Steven Avery or you just wanted to know what all the fuss was about, we'd be willing to bet that you now know quite a bit about the case featured in the Netflix hit.

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Related: Kathleen Zellner's biggest revelations about Steven Avery's case post-Making a Murderer 2

Kathleen Zellner has been keeping the case alive by sharing updates from the front line of Steven Avery's appeal battle. Whether you're a firm believer in his guilt or his innocence, there's a lot of investment and people continue to want answers to the many, many open questions.

So when we found out that Convicting a Murderer – another, unofficial, documentary focusing on the same criminal case – was in the works, our ears pricked up. Here's everything we know so far.

Convicting a Murderer release date: when is it out?

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There's no official word yet on when this new true-crime series is due to be released, but early reports claimed that it would arrive in October 2019.

Convicting a Murderer plot: what is it about?

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We were first introduced to Steven Avery and the murder of Teresa Halbach in December 2015, with the first ten episodes of Making a Murderer taking us through the timeline of Avery's original 2007 trial and eventual conviction.

We were also introduced to his teenage nephew Brendan Dassey, who wove himself – via a hotly-contested confession – into the case.

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Related: Brendan Dassey's confession on Making a Murderer: We've had it analysed by an expert

The prosecution was heavily critical of Netflix's original docu-series, with former District Attorney Ken Kratz being particularly damning in his assessment of its contents and its subjects. Over the past three years, which also saw the release of Making a Murderer's second instalment, the former special prosecutor in the Avery case has continued to underline his belief in Avery's guilt as well as pointing out pieces of 'evidence' left out of the documentary.

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This is where Convicting a Murderer comes in. This unofficial series, which has no affiliation to Netflix, is set to look at the story through the eyes of the prosecutors and the State of Wisconsin.

The eight-part series is being made by filmmaker Shawn Rech, who also worked on the 2014 documentary film A Murder in the Park, which looked into the case of former death row inmate Anthony Porter.

Rech himself has also made the argument that the original Netflix show was afforded "a one-sided analysis", and that through his own film he hoped to offer a more complete picture of the trials against Avery and Dassey.

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Related: Has Brendan Dassey been released? The latest from the Making a Murderer subject

Information about Convicting a Murderer is scarce, but we have been promised unprecedented access to key players involved in the case. Perhaps unsurprisingly, Ken Kratz features in the show's trailer, along with a relative of Halbach's and another employee at her place of work.

"When Making a Murderer was produced, many on the law-enforcement side of the story could not, or would not, participate in the series," Rech explained.

It also promises to explore the "traumatic effects" of being "vilified in the court of public opinion".

Perhaps most explosively, Rech told TMZ in September 2019 that he has recorded a confession to Halbach's murder – by a different Wisconsin prison inmate, currently serving time for another murder.

According to Rech, the unnamed inmate wrote to him, attempting to implicate Steven Avery even further in the case, but later changed his tune when he spoke to him on the phone – and actually ended up confessing.

"One minute into that call, we knew the letter was a complete lie and the person had confessed to killing Theresa. They gave a lot of details that matched the known public timeline of things that occurred… Two men are sitting in prison and a convicted murderer from that state says he did it. That has to be investigated."

Before you get on the blower to Kathleen Zellner, Rech himself is skeptical of the confession's veracity, but handed the material over to the Department of Justice anyway.

According to TMZ, a DoJ spokesperson said: "It’s important to note that this new information directly contradicts information previously provided by the same individual."

Spurious confessions are, after all, part of the daily business of law enforcement, and are the reason that police officers usually withhold key information from the public – in order to weed out the crazies, frankly. It remains to be seen whether the prisoner who claims responsibility for Halbach's murder can prove that he knows more than any other well-informed member of the public about the case.

Convicting a Murderer trailer: is there one?

Why, yes. Here it is:

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Convicting a Murderer: where can I watch it?

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At the moment we don't know, but it looks likely to air in the United States first.

With the worldwide interest in the case, we have every reason to believe that it will become widely available at some point. Watch this space.

Convicting a Murderer: what impact could it have?

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Avery's new attorney Kathleen Zellner has already spoken out quite strongly against Ken Kratz and his claims.

During Making a Murderer Part 2, she said: "I think that it's really unprecedented that Mr Kratz, in 2017, is still on some type of active character-assassination tour."

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Related: 9 of the most shocking pieces of new evidence to come from Making a Murderer Part 2

"He just cannot stay away from the case," she also added. "And the more he talks, the more ammunition he's giving us. Because he's made so many statements that are just false."

Will Convicting a Murderer shed any new light?

With an active appeal and new motions being filed, the defence's case has come a long way since the original trial featured in Part 1...

But we'll be watching.

Making a Murderer Part 1 and Part 2 is now streaming on Netflix, and Convicting a Murderer is expected to release in 2019.

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