I was very unclear what I was doing inn this. I did get into the bathroom, but even finding my way to the first key wasn't obvious. I don't know if the translating the Ukrainian note was helpful, but a little tricky without a Cyrillic keyboard - so plenty of secrets in this game.
The sound effects makes me think of the many folks I've talked to who g on and on about their noisy neighbors -- no matter where they go, they seem to have very noisy neighbors that pound on walls and pipes, etc., etc. - very crazy making.