Holidays in an old family estate with an elderly aunt - Dana thought that this would be the most boring time of her life. But how wrong she was! As soon as she crossed the threshold of Mallory Manor, she realized: this house looks like the set of a horror movie! Strange things are happening here: ghostly shadows flash everywhere, frightening voices are heard from dark corridors at night, and some doors appear and disappear... How to understand this? What's going on at the estate? And why did the owner of the house, Aunt Meg, really invite Dana to her place? The girl will have to discover many terrible secrets not only about the estate, but also about herself...