Took me about 30min of playtime.
A bit of spoilers so if you haven't played, do not read:
I liked the twist at the end and the radio by the end, I wish there had been a bit more clues to build to this, but it also works fine as it is.
I had a couple of issues with the gameplay, most of the time the signals would show up even when I was in the room next door, so it turned a bit confusing knowing which room was I supposed to be searching in. On a similar note the anomalies ranged from easy to spot and creepy (which was cool) to a couple of confusing ones, with the tutorial I assumed the anomalies would be creepy changes like faces, blood, etc. not normal changes in the rooms like a bird instead of a candle.
Also no matter how much I modified the voice audio, it wouldn't go up, so it was a little bit hard to listen to what the player character was saying.
Other than that it is a neat short game.