A guilty secret. A gruesome murder. A DEADLY MOTIVE.

Who wanted John Weston to die?

When John Weston is found poisoned in his plush City of London office, DS Jack Mackinnon soon discovers there are plenty of people who hold a grudge against the science investor. With an ever-increasing list of suspects, Jack Mackinnon and the rest of the major investigation team need to unravel the secrets surrounding the victim and find out who plotted Weston’s execution with a deadly toxin.

When the source of the poison is tracked down to a laboratory at the University of Oxford, the staff and students all close ranks. It seems that everyone has a secret to hide. As he gets closer to the truth, Mackinnon finds his own family could be at risk.