Koroshiya 1 was released in the year 2001。Koroshiya 1 is also called as Koroshiya ichi, Ichi the Killer。

Yakuza boss Anjo disappears with three hundred million yen. His loyal gang members, lead by the masochist Kakihara, start a search, but their aggressive and gory methods worry the other yakuza gangs. Kakiharas most frightening counterpart is the mysterious Ichi, a psychopathic killer with a dark childhood secret, who is controlled by a retired cop.

Koroshiya 1 actors and actresses include Tadanobu Asano。