Doctor Valentin Rumyantsev is deeply affected by the breakup with his beloved woman. He has lost faith in relationships. His personal difficulties have also affected his professional life: the successful doctor makes a mistake that nearly leads to a patient's death. Rumyantsev decides to step down from his position and takes a job as a local pediatrician in a regular hospital. One day, he responds to a call and is surprised by the strange behavior of the child's mother. After some time, the young patient mysteriously disappears...