There's potential! I like the user interface and the timer is generous enough where if you don't meander you can get all the clues needed pretty fast.
However, the current algorithm doesn't guarantee solvable murders, at best narrowing it down to a 50/50 shot, and at worst making it a complete crapshoot and probability-based, so it doesn't matter if you investigate the whole map and talk to everyone, you'll lose just 'cuz you were unlucky.
The murder victim died in the bathroom, and adjacent to it is the master bedroom with one entrance. There was Colonel Acid (forgot his in-game name lol) in that master bedroom alone, meaning if they were innocent, the murder would've been impossible as they would've seen the killer head in. Additionally, they were guarding the pillow, but that same pillow could reasonably be the murder weapon.
It is said the victim had no visible wounds. In the master bedroom, there's a pillow. In the bathroom, there's a painkiller. Lady Lilac testified to being with someone else, but that someone else testifies to being alone.
Logically, everyone who is by themselves cannot be trusted - they lack an alibi. So, the only way to disprove them would be with their supposed location and who they'd block the movements of.
In-game logic doesn't work this way tho - Lady Lilac is the killer. She obtained the pain killer from the bathroom, somehow passing by Colonel Acid (making the map and room positioning completely irrelevant), murdering the victim, putting the pain killer in the same room as the victim, and the ONLY thing that makes her the killer is "she lied lol".
But, in a 1 on 1 situation, how can you even prove which one lied? Lady Lilac could've been saying the truth - she WAS staying with that someone else. And that someone else could be saying a lie - that she was alone. Without any evidence, or map positioning, it is actually impossible to prove who's telling the truth or not.
The mansion layout is simple enough and easy to follow, and if the locations did matter, witness positioning could easily be factored in into the solving logic. The time-waster objects also don't deduct too much of your time so you can recover by investigating actually useful spots and obtaining possible weapons. I like that you can also narrow down your search for potential weapons by examining the body.