Underbelly (2008)

S1E1 The Black Prince

The Melbourne gangland wars ignite when Alphonse Gangitano, known as "The Black Prince of Lygon Street," brutally kills a petty criminal named Greg Workman at a St Kilda party, purely for the thrill of it. With his charm, Alphonse manages to persuade two witnesses to remain silent, allowing him to evade justice. However, this act of violence marks the beginning of chaos to come and propels Alphonse toward his own inevitable downfall.