After a dying wish made a promise to fulfill, 'a past promise' becomes broken. Then comes the revenge from the hurt it have caused both of them.

A gay man and a lesbian get married to hide their sexuality. They juggle their secret identities, fool friends and family, and search for true love.

The young family who moved to a new apartment on the outskirts of the city. The nanny hired by them for the newborn daughter quickly gained confidence. However, the older boy, Egor, talks about the frightening behavior of a woman, but his parents do not believe him. The surveillance cameras installed by the father for comfort only confirm everything is in order. Then one day, Egor, returning home, finds no trace of either the nanny or the little sister, and the parents are in a strange trance and do not even remember that they had a daughter. Then Egor, together with his friends, goes in search, during which it turns out that the nanny is an ancient Slavic demon, popularly known as Baba Yaga.

Ean has a critical mission to return to the future to save everyone. However, she becomes trapped in the distant past while trying to prevent the escape of alien prisoners who are locked up in the bodies of humans. Meanwhile, Muruk, who helps Ean escape various predicaments, is unnerved when he begins sensing the presence of a strange being in his body. Traveling through the centuries, they are trying to prevent the explosion of the haava.