Interesting mystery.
Mechanics worked, it could use some juice to make interactions and talking more interesting. The evidence presenting was quick and easy to use which I like. No fiddling with inventory or nested menus to present all of them.
I enjoyed solving the mystery. The writing was subtle enough that it took some brainpower to figure out, but was still solvable quickly.
I liked the persons tab. It helped me come to a decision faster since I didn't have to walk back and forth as much and it helped solidify who was who.
The art is a mixed bag. It's good in the sense that the characters are mostly easily distinguishable and the rooms are also easily mapped out due to the different flooring, but the low resolution on some of the floors and the walls having no depth I think hold the environment design back. I do like the simplicity of the furniture though. They were all easily recognizable even though they're basic shapes.
I kept getting characters mixed up in my mind. I think partially because I hadn't seen all the characters first so I couldn't map their image in my mind when someone mentioned a name. Maybe showing the persons list on start would help.
It would be nice to have an outro that reiterated the motives to confirm suspicions, but it's not super necessary.
All in all a fun mystery.