"The stories we've been talking about are definitely different milieus than Orange/San Diego counties," Dirty John: The Betty Broderick Story showrunner Alexandra Cunningham says of the USA anthology series' future. "But also, we consider our unifying principles to be love gone wrong and coercive control. … The thing I would love to do, all things being equal, to me the ultimate example of love gone wrong is familial. Not romantic love, not a couple, not a boyfriend-girlfriend like the first season or a married couple divorcing, but mother-child, siblings. Especially parentally, I think that's where love gone wrong truly begins, that the love coming from a parent is not appropriate or twisted or not real, that is obviously one of the things that contributes to people's future behavior. That's something I'd love to explore if given the chance." ALSO: Christian Slater learned to play Dirty John's manipulative husband by watching the movie Gaslight.