Top notch presentation! As this type of game relies so heavily on content (a lengthy/complex story to dive into, environmental puzzles, dialogue etc.) It'd be near impossible to create a satisfying experience within such a short time, so kudos on what was achieved so far. I found the time spent transitioning between rooms a bit too lengthy, and having to wait for the arrows to appear added to the frustration. I had to read the description to get the relation to the theme. Maybe more emphasis on the detective character would help, as without the context of the conventional hero, playing as the ghost feels less novel.