For Miłosz Dajski, a family gathering is an opportunity to meet family members he hasn't seen for a long time. While wandering around the palace he hasn't been to for years, he encounters a man claiming to be his cousin. However, Miłosz can't seem to recall him.

The awkward encounter soon sparks terror when the mysterious relative finally announces: "Someone is plotting an attack." Meanwhile, the descendants of the head of the family are in a dispute over inheritance and authority. Could it be related to the "planned attack"?