Lovely pixel art and very interesting theme interpretation!
I really like the concept of mixing noir atmosphere, stealth, exploration and mini-game mechanics. Cool music and nice effects, I specially like the one when you are busted.
Mini funny anecdote, I cracked the safe’s code in my first run without the need of going to the bottom floor to pick the note, I just guessed and got lucky :P.
I truly enjoyed it! Great job!