Shanghai fell, and under the neon lights of singing and dancing, there was an undercurrent. Our party's agent Lin Wei, codenamed "Nightingale", lurks among the enemy's and puppet high-level officials as a pianist. When a top-secret code related to a strategic counterattack is accidentally leaked, she must fight wits and wits to find out the insider, decipher the "Nightingale Code", and send information related to the survival of the nation out of this island-like "Magic City" under the double siege of Japanese and puppet spies and assassinations by military commanders. Trust and betrayal are staged on a silent battlefield.
