In 1938, as smoke blankets the sky, genius agent He Rui dances on the edge of a blade. A prodigy with a photographic memory disguises himself as a dissolute businessman, memorizes a Japanese military codebook in three hours, and reproduces a colonel’s handwriting in three days. Yet while delivering intelligence, he finds a femme fatale from the Special Higher Police pressing a gun to his temple.
When the healing hands of Dr. Lu Yao cut open his bloodstained shirt with a scalpel, revealing a wound concealing microfilm, she says, “Every batch of medicine you saved has my life written on it.” Watch this double agent use his memory palace to unravel the deadly game of a world at war and build an astonishing intelligence network amid a romance stained with blood. Intelligence is the sharpest weapon of all!