Based on the play by Dmitry Ivanov and Vladimir Trofimov.

Eugene and Alka have been friends since time immemorial and supported each other in everything. Alchina's personal life did not develop, and Eugene was happy in marriage, but they had no children with her husband and could not be. For Zhenya, motherhood has become not just a desire, but a kind of obsession. She learned that there is a medical technology by which the genetic material of a couple can give birth to new life in the womb of a surrogate mother. Alka becomes such a mother, after mutual long reflections and doubts. The lives of both women are gaining meaning. They have no idea that the main difficulties will begin after Alka gives birth to a son ...

Dark - the name of a city lost in the woods and therefore inaccessible. This is a world in which there is a place for everything irrational, unusual and mystical.

Each episode of the series is a separate mystical story of a collision of people with evil spirits: vampires, werewolves, mermaids or witches, which has its finale ... sometimes completely unpredictable and scary. This is a measured but tense detective based on unusual and strange events.