Minnie and Ernest Tucker, mid twenties, brother and sister, live on a moorland farm in Somerset. The farm has failed and they make a meagre living taking stray bed and breakfast guests. When a couple, Ben and Carol from London book in for the night, Ernest takes a dislike to Ben being much older than his girlfriend and kills him with an axe. Carol flees, but Ernest catches her and kills her with a pitchfork. Seven Crosses, set in rural West Country England, is a tale of brother and sisterly love gone wild.