Shanghai in 1941, where the foreign concessions and occupied districts interlock like the teeth of a saw. An agent of the Military Statistics Bureau codenamed “The Tailor” runs an unassuming clothing shop by day, while secretly managing the city’s most vital intelligence network. When he receives orders to assassinate a senior Japanese intelligence officer, he discovers that his identity has already been exposed, and the one who set the trap is none other than his most trusted handler. Overnight, he goes from hunter to hunted. With just seventy-two hours, he must find a way to survive the tangled game between Japanese and puppet-government agents, traitors within the Military Statistics Bureau, and the underground Communist Party, while uncovering a shocking secret powerful enough to change the course of the war.