Young Katya meets a cheerful band of visitors with a singular amusement: throwing parties in other people's empty dwellings. And Katya knows exactly where to look: an old country property on the seashore whose owner has been missing for a long time. The quiet house, where the spiritualist salon existed at the turn of the century, appears to be a great option to everyone. Even the horrific abandonment of this location does not seem to bother anyone... During the party, Katya sees someone she didn't expect to see: the mysterious ruler of the mansion... the man she loved. A man enslaved by supernatural forces.