The usurer Bart (played by Bob Hoskins) took in Danny (played by Jet Li) when he was four years old, and from then on, he trained him like a wild beast to become his loyal “wolfhound.” Bart’s daily work is to lead his men and Danny to collect debts everywhere. If anyone dares to violently resist, Bart will release the collar around Danny’s neck – a signal to attack, allowing the latter to use brutal and fierce moves to crush the opponent. At the end of each mission, Danny is sent back to the dark underground cage.
During a fight, Danny accidentally met the blind piano tuner Sam (played by Morgan Freeman) and was deeply attracted to the piano, forgetting Bart’s mission. Enraged, Bart sent Danny to an underground boxing ring that ends in death, earning more profits. On the way out of the boxing ring, Bart and his gang were ambushed by enemies, but Danny survived and was taken in by Sam’s family. At Sam’s home, Danny tasted the missing family affection, gradually regained his human side, and began to learn to play the piano. After treatment, Bart and his men recovered and once again pulled Danny back into the boxing ring, but Danny was no longer willing to kill. He accidentally found out the truth about his mother’s death, and Danny and Bart’s gang…
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