SPOILER ALERT: the following article contains massive spoilers, including the ending. If you have not yet seen the movie, proceed at your own risk, or better, come back to this article later!
SPOILERS AHEAD
Saturday Fiction Plot Summary and Synopsis
1941. Since the Japanese occupation, China has become a wartime intelligence battlefield for the Allies and the Axis Powers. Iconic actress Jean Yu returns to Shanghai, ostensibly to appear in the play “Saturday Fiction” directed by her former lover. But what is her true aim? To free her ex-husband? To gather intelligence for the Allied Forces? To work for her adoptive father? Or to escape from war with her lover? As she embarks on her mission, with friends ever more difficult to distinguish from undercover agents, as everything spirals out of control, Jean Yu starts to question whether to reveal what she has learned about in the imminent Pearl Harbor attack.
Source: Wikipedia (CC BY-SA 3.0).