Право на счастье (The Right to Happiness)

The mysterious disappearance of seventeen-year-old Sonya Pankova and her thirteen-year-old admirer Vasya Afanasyev during a school trip to the museum forces investigators to start looking for a motive for what happened. Soon they manage to hot on the trail to find Afanasyev, who decided to stage his abduction and was caught together with his accomplice while transferring the ransom by his father.