Aaron Kwok (The Storm Riders) plays Suen, a depressed and rundown cop still obsessing over his girlfriend's (Koma's Sinje Lee) sudden disappearance 10 years ago. While Suen extradites a witness from Canada, his bounty is murdered by an oddly principled assassin (One Night in Mongkok's Daniel Wu) who seems to possess information that Suen himself would kill for. The witness's death is welcome news for a crooked businessman whose assets were frozen by the police, until his only son is kidnapped. Enter To (Heroic Duo's Ekin Cheng), a lawyer who has always successfully protected his clients, and who coincidentally happens to be married to a woman who looks exactly like Suen's missing girlfriend.Each of these men will ultimately and painfully be drawn together, inadvertently rushing full speed towards their breaking points, until a violent and permanent Divergence becomes this film's only forgone conclusion.