A disaffected young man, Christie Malry, is a simple man who learns the principles of double-entry book-keeping while taking an evening class in accountancy and working in the local bank. He begins to apply these principles to his own life, revenging himself against society in an increasingly violent manner for perceived 'debits'. Debit: the unpleasantness of the bank manager is the first on an ever-growing list; Credit: scratching the façade of the office block. All accounts are settled in the most alarming way.Christie Malry is a simple person. Born into a family without money, he realised early along in the game that the best way to come by money was to place himself next to it. So he took a job as a very junior bank clerk in a very stuffy bank. It was at the bank that Christie discovered the principles of double-entry book keeping, from which he evolved his Great Idea. For every offence Christy henceforth received at the hands of a society with which he was clearly out of step, a debit must be noted; after which, society would have to be paid back appropriately, so that the paper credit would accrue to Christy's account. Now made into a film starring Nick Moran of Lock, Stock and Two Smoking Barrels fame. Acerbic yet funny, this is a novel which, even as it provokes laughter, will alarm and disturb as well.