AMONG the used syringes, the empty booze bottles, the wrecked furniture, the splatters of faeces on the walls and the floors covered in rubbish and filth, the Satanist graffiti sums up what passes for life at 200 Deakin Avenue.

Welcome to Hell, says one line scrawled beneath a pentagram. It seems tragically appropriate, because this is certainly a Hell for some.

What was once a popular family ba...