In the months leading up to the bombing of Pearl Harbor, an American man (Cusack) arrives in Shanghai to find his friend Conner recently murdered. After further investigation, Cusack realizes Conner had an affair with Japanese Captain Tanaka's lover, Sumiko. Unconvinced that Sumiko betrayed Conner, he later dons his Nazi-sympathizer/German cover and he meets Mr. Lang-Ting and Captain Tanaka. Paul later uncovers numerous photos Conner took, in his darkroom, some of which include Captain Tanaka and his officers. After a few bizarre encounters with Ms. Lang-Ting and Antony Lang-Ting, Paul realizes that Mrs. Lang-Ting secretly leads the Resistence-a group that is anti-Japanese,while her husband, Anthony, who is partners with Captain Tanaka's soldiers, is oblivious to this. In investigating his friend's death, he stumbles upon a secret the United States government has been keeping and falls in love in the process.