Can I join the conga line?

For about the first 2/3 I thought it was a fun variation on the "criminal picked the wrong house/person to mess with" type plot.

But I thought that the last third or so was just a hot mess. We're supposed to believe that a bank robber just happens to seek refuge at the home of the police lieutenant (was he a lieutenant?) who is investigating his case, and that officer also just happens to be crazy.

I think the movie would have been so much stronger if it had contained itself to the house and to some of the flashbacks showing how John came to rob the bank. Everything with the police investigation just felt incredibly messy and ridiculous. Even the ending stinger is absurd: Warwick is planning to kill off his own detective (and, presumably, also do something about the neighbor/witness)? That whole angle of things felt sloppy, and even the way that it was shot (the really muted colors and odd angles) sapped energy out of the story.

I also don't understand Warwick's ritual. He takes men, puts them through all the humiliation and drugging, then paints makeup on them and leaves them outside? I don't buy that. I'm sure that such a nosy neighbor would notice all these disheveled men leaving Warwick's house. I get that there was a theme of pretend in the house: the make-up, the retractable knives. But overall it makes very little sense to me, and didn't make much sense to me as I was watching it.

I think that as a self-contained study of two characters (John and Warwick) it could have been pretty great.