Dangerous Liaisons 2012

As war looms in Shanghai in the 30s, glamorous libertine Mo Jieyu (Cecilia Cheung) runs into playboy Xie Yifan (Jang Dong-Gun), an ex boyfriend who's never stopped loving her, and persuades him to play a treacherous game. Xie must seduce the innocent and naïve Du Fenyu (Zhang Ziyi) and then dump her. But the game becomes increasingly dangerous as Xie falls in love with Du, and it will lead them all towards tragic and shocking consequences.