I got stuck on the end of this game. I read the other comments and saw that the developer had made 3 endings. One where you "Do Nothing", one where you defeat... yourself, and one where you answer all the questions correctly. I brute forced every combination of answers to Hakos Baelz questions and wound up in the subway station on every single attempt. The rage I felt at this was apparently the thing I was missing to finally kill her and go through the little red portal at the end, which also just plays the credits...
So what you've made turned out to be very compelling for me. Though I couldn't tell you why.
Good job... I think. Troubleshoot the ending though, it might be messed up.
I also appreciate the puzzle with the picture frames, that was cute.