the setup is life and the payoff is terror

"I sort of leave it to the reader to try to pick through what is a lie what is true, and more interestingly, what is something that Bill says that's a lie literally, but is a truth metaphorically?

I think sociopaths, cult leaders— they're such narcissists that they often tell on themselves, even when they're trying to pull the wool over your eyes, they can't help it. They'll kind of admit to something they've done, because they sort of want the credit, then they'll create plausible deniability and act like it never happened.

You know, Robert Durst, the rich serial killer lunatic […] he got away with three murders, and he would have gone to his grave with those three murders. But they made a documentary and they said, "can we interview you?" And he's like, "of course you can, you need to hear my side of the story!" Because he's so convinced that he's a genius, he can't help himself. They say that murderers often return to the scene of the crime, well, that's a crazy thing to do. But there's this ego involved. So, a character like Bill is going to deny a hundred things while kind of hiding a confession inside those denials. And that seemed interesting to me to explore."