Theyoungfamilymovestoanewapartmentontheoutskirtsofthecityandhiresanannyfortheirnewlyborndaughter.Havingcometotrust,thenannyatnightscarestheinfantandtheeldestsonEgor,whoistryingtotelltheparentsaboutthestrangebehaviorofthenanny,buttheydon’tbelievehim.Tocalmthefatherinstallssurveillancecameras,buteverythingturnsouttobeinorder,nothingsuspicioushasbeenfound.WhenonceEgorreturnshome,hedoesnotfindanannyoralittlesister.Butparentsareinastrangetranceanddonotrememberthattheyhadadaughter.Surprisingly,withherbabyallhertoysandthingsdisappeared,asifshehadneverbeenherebefore.Egorandhisfriendsgoinsearch,confidentthatthenannyisinfactanancientevildemon,popularlycalledYaga.Andiftheydonotcope,theirparentswillalsoforgetthemddd