The Butterfly Tattoo (2009)

Marcus King, an old school gangster, a crime lord, has left behind old school crime. He has manoeuvred his business into the leafy lanes of the suburbs and now, in place of pimps and dealers, his team consists of the best graduate geeks that money can bribe. No brothels, no casinos and no drugs - he's dragged serious, organised crime well and truly into the twenty-first century. From credit card cloning and skimming to Internet spamming and scamming, he is the king of Cyber Land.

Margaret Powers—a middle aged, middle class doctor of pathology—seeks a path of vengeance when she captures and tortures the young man she believes murdered her son, but in a bid to extract a confession, that path to vengeance leads to tragedy and unearths deeply troubling truths.

Known as a “kindly killer”, this documentary details Nilsen’s moves between 1978 and 1983, after which he admitted to killing as many as 15 young men.