Accompanied by haunting memories of his service time in World War II, Dr Lucien Blake returns home to Australia after 30 years to take over his deceased father's medical practice. As he deals with his own personal loss and changed by his war experiences, the wry, personable doctor performs his other role as police surgeon with gusto. His unconventional and unpredictable manner unnerve some, but it becomes clear Dr Blake is ahead of his time in his use of forensic science, and in his own understanding of the human heart, to help solve murder mysteries in the country town of Ballarat.