A hit man with his own way of doing things wonders if the tables are being turned on him in this intelligent thriller from Hong Kong director Soi Cheang. Ho Kwok-fai (Louis Koo) is an unusually talented hired killer known in criminal circles as the Brain. The Brain is a man who can pull off a hit without ever having to pull a gun; instead, he and his cronies (Lam Suet, Feng Tsui-fan and Michelle Ye) stage what he calls "choreographed accidents," in which they arrange for an event to take place that will look like a deadly act of fate to outsiders but is in fact a deliberate murder. The Brain senses there are feelings of anger and mistrust among his crew, and he's placed surveillance equipment in their office space to find out what they're saying when he isn't around. When a client named Wong (Chan Mong-wah) insists upon an especially complex "accident" to claim the life of his father, things don't go as expected; the Brain narrowly escapes death and one of his assistants is killed. Now the Brain has to find out if the hit that went wrong wasn't in fact an "accident" meant to assassinate him. Yi Gnoi (aka Accident) was an official selection at the 2009 Venice International Film Festival.