Chen Ta Erh is sent to assassinate an authority, succeeds, and is later killed in a failed suicide bombing attempt on Chiang Kai-shek. After the assassination, he becomes governed by fatality and desires simply to kill, thereby fulfill his duty as a terrorist, a duty which controls his life. This is largely the result of being so close to death since assassinating a man. He is so haunted by death and his powerlessness over inevitability that he wishes to die, just to end his torment.
