"We tell the story of the only woman other [than Debra who] John ever chose to marry. And she's an incredibly intelligent, successful, articulate woman who has nothing in common with Debra, other than being an intelligent, articulate, successful woman. The way they were brought up is totally different," Cunningham explained to HuffPo. "Their milieu is totally different. The things they find interesting are totally different. And John devastated both of them. A large part of the storytelling going forward is the effect that John had on so many people who made the mistake of caring about him."

She continued, "I don't know whether John would have chosen to talk to Chris if he was in prison instead of gone. But, of course, he can't do that. So, that was a real opportunity for both me and Eric. Eric obviously was fascinated by the "Dirty John" podcast, but coming at it from inside John, that was definitely a thing that we both wanted to explore."