i recently remembered a movie i watched about 9 or 10 years ago, i cant remember the name so i'll describe it, the movie is a bout a police detective that dosnt like guns (due to accidentally killing his brother when he was younger) he instead uses a switchblade, he gets hired for a case to spy on a house, where he is haunted by a criminal he killed in the past, in the end, he finds out that his client was the sister of the criminal, he confronts her , and his partner accidentally shoots him, does anyone know the name of the movie?