With one man in jail and another on the wanted list, the safe-raiding at Glen Ault whisky warehouse seems an ordinary enough incident to Detective Chief Inspector Colin Thane and Detective Inspector Phil Moss of Glasgow's bustling Millside Division. But the case assumes major proportions when the jailed man's wife is murdered and HM Customs and Excise become involved. The two CID officers soon realise that the real taste of proof would have to come from the whisky - but to find their proof they must travel from the great sprawl of a new housing development in the city to the desolate loneliness of a vast peat-bog.
