Eric, Mai's uncle, suddenly disappears one day. While trying to find out what happened Mai stumbled upon her uncle's old diary. When he was a young man who wanted to be a writer but found publishing his books very difficult; In order to provide an income for himself, he had to work as a mason. According to his memo, his work as a builder led to another very frightening side job. Eric was not enthusiastic about this job even though it brought him luck getting his books published. Does Eric's disappearance have anything to do with his side job? And how will this affect Mai's life? If you dare to listen to this story, you will know what hides inside the walls in the buildings of Copenhagen.
