Viva, Castro!

Antique coins have been stolen from a Leningrad museum. Matvei Levitin, the suspect, disappears during the investigation of the case. Failing to find him, the police arrests his wife. When a year later his mortally ill father returns, Kolya tries to arrange for him a meeting with his mother, using the opportunity of the expected visit of Cuban leader Fidel Castro to the town of Gatchina.