Ichi the Killer

Story:

There are two crazy people in Shinjuku Kabuki-Cho, the largest sin town in Japan. Ichi is a coward and a wimp, but when he sobs, he transforms into a weapon made of people. With considerable martial arts prowess and a blade concealed in his boots, he quickly reduces a group of foes to mincemeat. Kakihara, a yakuza boss who is weary of everything—including himself—is his archenemy. He doesn't feel alive until he pierces, slashes, and burns his own and other people's bodies.