There's not much of a plot, but some man visiting the places of his childhood, and recollecting memories about himself and his twin brother in post-WW2 Belorussia and their experience with soviet life and Christianity. One of the twin brothers dislikes the cruelty and sinfulness of this world, while the other turns a blind eye to it (from movie description). Seeing how the twins were played by the same child, it appears to describe the duality of human nature, one part influenced by God's spirit is drawn to God and good, and the other (the sin in the flesh) drawn to evil, as apostle Paul had described in Epistle to Romans 7:15-25. It's a slow movie, but hard to look away; easy on the dialog, but heavy in strange images of Gospel allusions, soviet life and animation effects.