They say two things are certain in life-taxes and death-but murder is a step too far in this Whisky Business mystery.... Her Majesty's Revenue and Customs are on the warpath in the village of Balfour, and the local shop owners fear that their financial sins are about to catch up with them. Meanwhile, Abbey Glen's new Whisky Masterclass is a resounding success...until the latest group of students starts to drop dead in the night and Abi Logan fears that what they are really offering is a Masterclass in Murder. Missing money, dead bodies, and a whistle blower who may not be as virtuous as he appears leave Abi scrambling for clues in the dark. Will Abi find the killer before the inevitable happens?