Sister and brother: Margaret and Matthew are going to arrange for their friends an excursion to their grandfather's old house. A relative died a few years ago, and the house was closed until there is a buyer for him. This is a strong mansion built in the old style. It looks pretty attractive, but there were no buyers for it, the reason for this is the rumor that ghosts are in the house. Our heroes decided to check whether this is actually so and dispel the rumors if they all turn out to be untrue. Accompany teens, no matter what happens in Midnight Song.