The third final season of the thriller Hemlock Grove continues to tell the story about a small American town. There are still dark powers of the evil around this town and the biggest part of these powers is connected with the Godfreys family. Main heroes meet new people, who brought a new threat with them. Peter and Roman understand that they are the only hope. Only they can resist this threat, when then let out their real flesh. They do not want to do it very much, they like to be ordinary people. But the threat, that is all over ..