One winter morning, a body with limbs twisted into grotesque shapes was found hanging over the Brooklyn Bridge. Two words were clearly engraved on its chest: "Bait".
There is more than one sign that this is a copycat serial murder case, and the source is likely to be the "patchwork doll case" in the UK 18 months ago. Sure enough, a week later, a similar murder occurred in a British prison. The deceased was the serial murderer Maas. "Bait" is also engraved on Mas's chest. The difference is that this time, the murderer also died on the spot, with "Puppet" carved on his chest.
The incident snowballed, and pairs of dead people appeared one after another on the streets of London, New York Grand Central Station, churches, and hotels. Baxter, the female inspector of the Metropolitan Police Department, who has always been tough and suspicious, had to work with the agents Rouchet and Curtis sent by the United States to hunt down the murderer. But even if powerful forces join forces, they are unable to save the situation time and time again. Every time a case occurs, the murderer dies before being caught. How on earth are they going to deal with such a cunning opponent? Who is the puppet master behind everything?
