Several days after Nancy Grace revealed that she believes "Making a Murderer" subject Steven Avery is guilty of the 2005 murder of Teresa Halbach -- and just one day after Avery filed an appeal -- Avery's ex-fiancee Jodi Stachowski appeared on "Nancy Grace" to allege that Avery was a violently abusive "monster" and that she also believes he is "not innocent."

In her interview with producer Natisha Lance on Wednesday (Jan. 13) night, Stachowski said, "He beat me all the time, punched me, threw me against the wall. I tried to leave. He smashed the windshield out of my car so I couldn’t leave him..."

She went on to allege that she didn't actually want to be featured in "Making a Murderer," that all of the seemingly affectionate moments captured between Stachowki and Avery in the Netflix docuseries were a lie, and that Avery told her how to act on camera and threatened her with violence if she didn't comply.

“Steven called me and told me that if I didn’t say anything good and nice about him, I’d pay,” she said. “He’d beat me.”

In further describing the alleged abuse, Stachowski stated that Avery once threatened to throw a hair dryer into the bathtub while she was taking a bath, and threatened to kill members of her family and one of her friends. She also described one particularly violent evening:

He choked me one night. Well, actually, he started hitting me, so I called the police. So he choked me and was dragging me out the door so we could leave before the police got there and we were driving down the road. The police that were on the way pulled over and they took me out of the car and asked me what was going on. They arrested him and ordered him to stay away from me for three days.

Stachowski later described the desperate measures she was willing to take to escape the alleged abuse, saying, "I ate two boxes of rat poison just so I could go to the hospital and get away from him," and painted Avery as a bitter misogynist.

“He told me once, all bitches owe him, because the one that sent him to prison the first time,” she said, referring to the wrongful conviction for sexual assault in 1985 that sent Avery to prison for 18 years. “We all owed him. And he could do whatever he wanted.”

MTV News has reached out to Avery's defense attorney Kathleen Zellner and Netflix for comment.