A mysterious game

Hello everybody,

today I want to share another loss of mine. Let's start with the opening. My opponent was rated about 200 point lower than me. It was our 2nd encounter. He already won with black against me, because I didn't play too well in the first game. 

Here is the opening:

White is behind in material and black has good opportunities to win the game. One would think that this will be an easy game for black.

But now the game changes myteriously since white plays every move very precise like a machine. I looked it up with Stockfish, from now on he plays only the best moves, the engine would be play:

It looks like I lost to a stronger opponent who is underrated. Or that I was overrated, because I blunder too often