A family with deep secrets and a history of infidelity becomes entangled in a web of murder and revenge. As the truth unravels, relationships are tested and the consequences are deadly.

Colleagues at work - Anna Sergeevna and young Lena - come to rest in a country sanatorium and become unwitting witnesses to the crime. They begin their dangerous investigation and feel that they, too, are in trouble. Trouble is everywhere here, everything around is saturated with it. Danger weakens and excites. Everyone is infected with danger, including the main suspect - Georgiy.