Are children responsible for the sins of their parents? Alas, this is often what happens. When Charlotte attempts suicide under the wheels of a bus, her mother Susan becomes paranoid. Day and night she painfully tries to understand why her girl wanted to die and who is to blame. It seems to her that even the closest people are hiding something. Susan begins an investigation and gradually understands: the cause of the tragedy is closer than she thinks, and she must look for it in her own past, because everything secret sooner or later becomes clear.