The extraordinary memoir of a man who has spent his working life looking into the eyes of modern evil.

As Australia's most distinguished criminal psychologist, 'Doc' Tim Watson-Munro has assessed over 30,000 'persons of interest' in some of the nation's most notorious court cases, including Hoddle Street gunman Julian Knight, corporate fraudster Alan Bond, Melbourne gangster Alphonse Gangitano and, in recent years, Australia's first terrorist convicts.

But the frontline of psychology is no place for the faint-hearted. Tim's pioneering methods and proximity to evil made him front page news but also led him to a devastating personal crossroads - first wife gravely ill, second wife pregnant, best mate betraying him to the cops, $2,000-a-week drug habit spiralling out of control, brilliant career and hard-won reputation in crisis.

Tim's descent into the maelstrom is a candid, funny, frightening odyssey, offering unique insight into not only the nature of addiction, but also the lives and minds of the psychopaths we share our world with.

After all, when you're dancing with demons, it takes one to know one.