Once, as we walked in Manhattan, he told me: “Imagine you’re in a game. Think how the world changes. Is that guy in the doorway really checking his cellphone or keeping tabs on us?” Enright’s phone would ring, and he’d conduct coded conversations with players. “Go. Copy. Move to Location 2 and lock exterior.” While we waited for a traffic light, a brunette drew up, gave us an odd look and walked toward an apartment building. “She’s with us,” Enright said.