I love how you interpreted the theme as a power struggle! I was impressed by the story that was told in such a compact environment and amount of time. Each character had a unique personality, design or quirk, it was interesting to see how things would play out. Fantastic work!
*Spoilers ahead
I liked the reveal of The Stranger being The Killer in one of the routes. I thought I was on the right track when splitting the key between the Kingpin and the Businessman, but I didn't expect my character to deal with both of them so suddenly! I was able to get two endings and I assume there are at least three, but I'm curious how many in total there are.