Mariya's daughter, seven-year-old Sonya, disappears. The heroine experiences severe stress, finding support in the face of her relatives. But over time, Mariya begins to think that her family members are not at all eager to find the girl. Her husband even leaves on a business trip, inviting his ex-wife to the house - so that she can look after Mariya. Left alone with her grief, the heroine begins to suspect that the child disappeared due to the fault of her relatives.