When a brothel madam is shot on a Perth golf course in 1975 it should be a routine murder enquiry. But it isn't. In fact there's barely an investigation at all, and Superintendent Swann thinks he knows why. Heroin is the new drug in town and the money is finding its way into some very respectable hands. It's the brave or the foolish who accuse their fellow cops of corruption, and sometimes not even Swann is sure which he is.