Instance of bad writing?
The part where Willie breaks into the apartment:
Carl has Molly take a walk with him, the implication being to lure her away so Willie can get in. Willie gets in, and Sam follows Willie around the apartment... but after a minute or so, Molly returns from the walk? That seemed barely enough time for her and Carl to get downstairs.
Then Sam follows Willie to his place where Willie makes a call to Carl (We have to assume its Carl, because thats the only person that would make sense for that conversation and situation)
"Couldn't get it. She came home." But wouldn't Carl already know that Molly returned to the apartment within a few minutes of stepping out? He was with her, no?
I wonder what the "going for a walk" looked like from their point of view... where did they actually go and did they part ways immediately, and if so why would Carl just leave knowing that Willie was there?