This is going to be vague. I am trying to remember a movie or series, movie I think, that had a woman who talked with a thread in her mouth, she also used it to kill. I think it had vampires or monsters in it. Can’t remember what it was. All I can remember is the woman talking with the string in her mouth or around her throat to someone else at the other end Of the string. Then she used it to kill him. Had a male main character I know it had monsters. Main thing I remember was the lady communicating with the string. She could lay it out really far to listen to other people. I think she also uses it to assassinate someone. Sorry it’s so vague, I saw it years ago on cable. Maybe scyfi channel.