Any suggestions for...?

I am writing a book about a 16 year old girl. A German family builds a house next to hers, and she falls in love with the teenage boy. one night he brings her flowers, which he has drugged. she wakes up to find him and her other neighbor carrying her up a driveway, and she sees a noose.(the thing they hang people with) She manages to escape, but is dragged into a car. She wakes up in a chamber, and starts to try to find a way out. She walks into a room, then hides behind a curtain, because she hears people coming. Their leader removes a sheet from over a large bowl, filled with a liquid. they stare into it, then the leader tells them to "kill the girl".