People living at a seashore town are frightened by reports of an unknown creature called "the sea devil". Nobody knows what it is, but it's really the son of doctor Salvator. The doctor performed surgery on his son and now young Ichtiander can live under water. This gives him certain advantages, but also creates a lot of problems.
Vladimir Korenev
Anastasiya Vertinskaya
Mikhail Kozakov
Nikolai Simonov
Anatoliy Smiranin
Vladlen Davydov
Albert Antonyan
Nina Bolshakova
Aleksandr Zakharov
Anatoliy Ivanov
Vladimir Kudryashov
Nikolay Kuzmin
Mikhail Medvedev
Yuri Medvedev
Anna Nikritina
Irina Orlik
Georgi Tusuzov
A. Shaginyan
Sergey Boyarskiy
Rafik Gasanov
Roman Isakov
Ignat Leyrer
Bronislav Moreno
Tito Romalio
Anatoli Stolbov
Stanislav Chekan