On and beneath the meanest streets of Glasgow, fiery gangster Bart (Bob Hoskins
) is merciless with debtors, would-be rivals, and anyone else to whom he takes even a passing dislike. How does Bart maintain his chokehold? Through his unwitting enforcer Danny (Jet Li
), whom he has "raised" since boyhood.
Danny has been kept as a near prisoner by his "Uncle" Bart; trained to attack and, if necessary, kill. Danny knows little of life, except the brutal existence that Bart has so crudely and cruelly fashioned for him. But when Danny has a chance encounter with a soft-spoken blind piano tuner Sam (Morgan Freeman), he senses true kindness and compassion for the first time.