Super-wealthy Adam Wan had a plan. Armed with an almost undetectable microbial cocktail, he set about killing people to make the world a better place. The strategically chosen victims died from what appeared to be naturally causes.

It was all going well until a Canadian investigative journalist got wind of it. Barry Mackay was raised in Helensburgh, Scotland, studied microbiology then took to journalism back in Canada. Trained in armed combat and under contract with the CIA, MI5 and the Canadian secret service, he earned a reputation for doggedly uncovering and righting injustice.

Calling up his many resources, Mackay travels the globe homing in on Wan and his accomplices, determined to find the reasons for the targeted killings. In doing so, he comes face to face with the killers and his own morality.