Wrong It Was, Very Wrong

Aberdeen is a quiet, law-abiding city. Multiple recent murders has everyone in a state of panic. The police scramble to find a connection between the young women, but apart from the fact they are all very similar in appearance they come from very different backgrounds. The killer is getting much more confident, more bodies and the police are no closer to finding the perpetrators, and yet the killer is leaving clues, quotations from Macbeth to help locate the bodies.