While doing their work on the deep underwater station two aquanauts discover strange mystery: it seems as if one of the aquanaut's girlfriend who recently died in a car crash had turned into a big manta fish. That manta writes words on the station's port-holes and tries to draw attention many other ways.
German Poloskov
as Igor Sobolev
Александр Яковлев
as Sven Boll
Ирина Азер
as Lotta Kerom
Вацлав Дворжецкий
as Professor Kerom
Arnis Līcītis
as Dumont
Николай Крюков
as Commander
Юрий Саранцев
as Selivanov
Pauls Butkēvičs
as Dugovsky
