I have just completed studying that piece, In der Nacht, and played it at my recital a couple of weeks ago. It's an exciting piece to play. Be sure to pay attention to the dynamics and create a suspense that builds up to the inner section, then play it smoothly and evenly. The inner section was the most difficult for me to learn. Keeping the 16th all even between the left and right hands was a challenge. The best thing I can say about that is to left the right-hand melody sing, while the other notes just fall into place. My favorite recoding I've heard of the piece is located here-
https://www.classicalarchives.com/artists/diev.html He does an excellent job of creating a suspense and intrigue that is fitting for the title, "In the night".
My professor always has me make up a story for the pieces we are working on, and sometimes this is difficult, but I had a vivid story that I put to this piece. I thought of how there was a storm coming, off in the distance, but approaching rapidly. There is a family in a house, sleeping, as the storm is in the middle of the night. The parents awake and, sensing the imminent danger, dash to the children's rooms to gather them from their beds and take them to all to a safe place. The storm arrives and they must run for shelter a bit outside the house. The middle section arrives, as the storm seems to be passed. There is a brief gratefulness in the air of having escaped. But as soon as they feel comfort, the storm is not over, but roars back up, even more than the first pass. Huddled under their shelter, the storm rages without, finally dissolving in a flash. All is but a memory.