It's been a year and a half since the high-profile Rag Doll case was solved, and Detective Emily Baxter believes it's behind her. However, suddenly London and New York are covered by a new wave of murders, in which the handwriting of the maniac “puppeteer” is discerned. Each time, two victims are discovered: one has the word “Bait” carved into his chest, the other “Doll.” Scotland Yard and the FBI are working hard to find the invisible puppet master. However, every small step towards the truth is accompanied by an avalanche of new victims. What lengths will they have to go to to stop the bloodshed?