On his birthday, police captain Chernov arrives at the service and receives a message that after he left, bandits broke into his house and seriously wounded his wife Lyudmila. Doctors save Lyudmila, but she remains in a coma. Chernov is grieving, but suddenly Lyudmila gets in touch with Chernov from the other world. She tells him how to find and punish her offenders. From this moment Chernov regularly receives messages from Lyudmila. Sometimes she appears in front of him on TV, in a picture, or just in the air. Sometimes he seems to be carried over on the day when they wanted to kill Lyudmila - time after time Chernov worries about the minutes when he last saw Lyudmila in consciousness. And each such meeting carries the key to uncovering another case being investigated by Chernov. And only after unwinding a ball of seemingly unrelated crimes, Chernov will be able to understand what happened on the fateful day and change his past, and hence the future.