Baigal.

Galimžjan, an old man living an ascetic life by the sea, confronts his past as his son is accused of assaulting a man in the city. Galimžjan has lost his faith in a mythical fish called Baigal that is said to live in the nearby Volga river. But Baigal, who can bestow luck on those who reach it, might be just what he needs.