It is July 23, 1970 when the writer Charles Grady moves into our hotel with his wife and two daughters. He plans to stay for a longer period of time so that he can finish his latest book in peace. Apparently, it is precisely this peace that has caused Charles to lose all contact with reality and become completely absorbed in his book. It is a mystery to everyone what exactly happened, but Charles Grady and his family never checked out of Room 237.

https://hotelveloria.nl/nl/escaperoom/kamer-237/