Second series for hit Netflix documentary

Making a Murderer - Netflix series.

The creators of Making A Murderer have put the wheels in motion for a second series.

The pair behind the hit Netflix documentary, Moira Demos and Laura Ricciardi, say they have already started interviewing key players in the case with their sights set on making another series.

Steven Avery, the subject of the series who was convicted for the murder of Teresa Halbach, has recently secured a new lawyer, Kathleen Zellner, who is working to exonerate him.

However, despite all the wheels being in motion for a potential appeal, there is one thing that's holding Demos and Ricciardi back and that's returning to the scene of the crime, Manitowoc County in Wisconsin.

"We are exploring the idea of continuing to follow this story but we would have to address the detail, you know, do we go to Manitowoc County," Ricciardi said during a talk at the Spectrum Now Festival in Sydney on Thursday.

Demos and Ricciardi moved from New York, where they were studying film at Columbia University, to the county to document Avery's case in 2005.

To continue the story, the pair would have to return but since the series launch they've been warned that they've ruffled a few feathers.

"Sometimes I think we've been bold before, we've made bold choices before, but then I remember that Ken Peterson (the head of the Manitowoc County Sheriff's Department during Avery's trial) said during an interview with the local media that it would have been easier to kill Steven Avery than to frame him," Ricciardi said.

"Law enforcement are not the only gun owners in Manitowoc County. Lots of residents own firearms there as well.

"I think in certain ways locals in Manitowoc County, whether they've seen the series or not, think that we somehow did an injustice to them by airing their dirty laundry."

But this pair is nothing if not bold and has already started work on a follow-up documentary.

"We've continued speaking with Steven, we've recorded some of the phone calls we've had with him post launch, we still speak with his family, we've spoken with Kathleen Zellner and we would reach out to the other side again, to law enforcement again and perhaps (the victim's family) the Halbachs again," Ricciardi said.

- AAP