I don't know why more Americans haven't given this show a fair chance. Of all the medical examiner mystery tv dramas, McCallum is my favourite. The storylines and plots are intriguing, not to mention thrilling ... even though admittedly at times, one has to suspend reality a bit as to the portrayal of forensic and law enforcement procedures. I especially enjoy the character development of McCallum and his co-workers - each with their own personality and are believably human in loyalty, betrayal, folly, and relationship interactions.
Stand out co-star of the show is Gerard Murphy, as the gritty, hardnosed DI Bracken.