Ichi the Killer is a Japanese movie about a man named Kakihara who is part of a Japanese gang. He enjoys giving and receiving pain. When his gang boss goes missing, Kakihara is angry because he thinks nobody else will be able to give him as much pain and pleasure as his boss did. It turns out Kakihara's boss was murdered by a violent killer called Ichi (Japanese for the number one). 300 million yen was stolen by the group that arrived to clean the mess up. Kakihara has convinced himself that his boss is alive and tortures a member of a rival gang for information. The man turns out to be innocent and Kakihara is kicked out of his gang.