Riddle 622 numbers

One December morning, a corpse is found on the floor in room 622 of a luxury hotel in the Swiss Alps. The police never managed to solve the case, and with the passage of time, many people forgot about what happened.

 Many years later, the writer Joel Dicker comes to the same hotel to recover from a breakup. He does not even imagine that he will finish investigating the old crime, and not yet himself: Scarlett, a beautiful guest and a novice writer who stayed in the next room, will accompany him in his search, and will also try to figure out how to write a good book.

 What happened that night? We will find the answer to this question in this diabolical detective story.