The floor creaked in the hall outside my bedroom at 3:20 in the morning, and shortly after that, the doorknob quietly turned. I had a Louisville slugger in my hands and a hundred-pound dog snoring next to my bed. On the other side of the door was Mike Harper, a childhood friend who had suffered a mental breakdown, thought mobsters were after him, was carrying a large knife and pining away for Adeline, a woman he hadn’t seen in a dozen years.