We read novels. We read hundreds of pages of words, when the story is good because we're willing to stay there. I hope the story is good. I'm going into this venture thinking that the audience is really smart and really wants to hear all the nuances of what we're saying.

The most surprising thing to me is what an incredibly intense effort it's been to create a world from the ground up. I had run a show that had already existed and had been created by the show-runner, Meredith [Stiehm]. It's a very different experience to come in at ground zero and meet people and assemble the cast and crew. As a group and as a family, we're creating this world.

I am endlessly fascinated by this notion that everyone has a secret. Some of our secrets are tiny, small things, and some of them are huge. Given that reality of the human condition, that's what our characters will go through. There will be some things where you'll just be like, "What the hell! How the hell did that happen?"

Before I write anything, before I create any assumption in my mind about what it's like to be in that world, I go out there first. I'm very drawn to darkness and light, very drawn to cop drama, because there are very few places besides war and murder and a homicide investigation where you see the extremes of human nature - the darkest crevices and cracks in what people do to one another.

Creating a world that reflects the inner voyage of our characters was really important. Also, because this isn't a black and white show, and this isn't about bad guys and good guys, but it's about good men being capable of bad things and vice versa, I wanted to be in a city that had contradiction.

By not foretelling the ending to yourself, as a writer, you're able to open up the canvas and say, "I'm going to go here. I'm going to go there." It's just a little bit more freeing than a stand-alone procedural, where you work backwards from the end.

I've always been kind of drawn to the extremities of human nature. I wrote my first screenplay when I was 16. The initial idea was a friendship between two prostitutes, and I spent time with a vice squad guy in Cincinnati who brought me to a brothel and gave me the rundown on how street prostitution works.