Damian, the son of Lucifer is so attach to his banjo that his father couldn't stand it. Lucifer felt his son would never grow up to be a feared demon. So during their father and son chat, Lucifer tried to persuade Damian to play a violin, a favorite music instrument among demons. Damian couldn't part with the banjo, despite his father's demands. This leading to unforeseen circumstances leaves a strain between the prince of darkness and the ruler of Hell. However towards the end, it turns out that both Lucifer and Damian are a like despite having different tastes in music. LeGault