Luke Styles returns from a business trip to find his normal life is about to take an intriguing and life threatening turn. A trip to his storage unit finds he has mislaid his key and is given the wrong spare one. Opening what he thinks is a unit full of his personal overflow of possessions he is surprised to find a girl tied and gagged and in obvious immediate danger. Once he unties her he realises that he knows her, Selena, from university where they both studied mathematics. When Selena is killed, Luke makes it his duty to find out what is was that made Selena a target. Together with her sister, Debbie, Luke starts his investigation, which revolves around a mathematical theory that involves a million pounds. Or does it? A book full of intrigue, humour and you don't have to be a maths genius to follow the plot.