Haunted Mansion is a strange place filled with ethereal spirits. Among them there is a special one - the inhabitant and keeper of the library Amikus Arkein. He loves scary stories. And especially loves to tell them! When four children get to the mansion - lovers of scary stories calling themselves the Nightmare Quartet - he does not miss the chance to tell them a couple of chilling fairy tales. What is the horror of the guys when they understand that these fairy tales are about themselves...