Childhood should be the happiest period of life; this does not always happen. Those who have experienced something terrible or unpleasant in childhood remember this all their lives. This leaves an imprint and sometimes develops into a phobia or into other psychological diseases. Sharon and Lisa, when they were little, faced a terrible otherworldly force. The demon drove them out of their native scrap and separated them from their parents. As adult girls, they decided to return home and look into the eyes of their fears. Help the heroines in Concealed in the Darkness overcome themselves and find out what was really there.