Ivan's Day Kupala and 40 days after. Wolf D.

They were friends from the first grade, were the best friends and dreamed of life in a big city. Every year they celebrated Ivan Kupala's Day and spent their girl’s rites, making wishes. But this time something went wrong, they still managed to call the one who fulfills desires. But the price of this miracle was too high! For one desire - the death of one of them. Will the named sisters avoid the temptation, and Major SK reveal the case of mystical murders performed once in eight days?..