Firstly, as mentioned in other reviews - it's a love or hate film. Cold and frustrating for some, but deep and thought provoking for others. A personal vision for it's writer/director which touches subtly and intimately on grand themes such as death, desire, curiosity, emptiness and the long dark night of the soul.
The core of the film is Lucy, a young girl in her quest of survival both financially and emotionally. Menial job, unstable living situation and relationships - common indie film subjects. But as curious Lucy applies for a strange, dangerous, erotic job, both she and the film then take a turn into a darker underworld. The film then becomes more dreamlike, jet lagged even as the underlying themes become more relevant than the actual events themselves. The jigsaw piece style of narrative is handled very well in my opinion.
It beats to it's own heart but the films it reminded me of most were 'Story of O', 'Mulholland Drive', 'Celine and Julie go boating' 'Picnic at hanging rock' and Michael Haneke's 'Hidden'. Unusually European flavour for an Australian film. Delicate and haunting but not everyone's cup of tea/mysterious white powder bedtime beverage.