Who is that woman in Ryu's flashback? *slight spoilers*
Ryu, the one who is an ex-cop, is shown in a flashback busting down the door with another fellow cop and discovering a woman being sodomized by two men. By the shocked look on Ryu's face we assume he knows the woman and has an intimate connection with her... yet the film never explains what the connection is!
Who is she? How are Ryu and her related? Wife? Girlfriend? Sister? What? Did I miss something while watching the movie? I watched the movie twice and still don't know! Help!