Whodunit? It’s the question that motivates the world’s greatest police officers and detectives, and the question that has led to the solving of uncountable crimes. But what happens when good old fashioned police work isn’t enough? What do the good guys do when police intuition leads to dead ends? The answer is to turn to forensic science. Graham Greene hosts this fascinating mix of documentary and dramatic re-creation to bring to life some of the most publicized and virtually unsolvable criminal cases in the Canada and the US. A fascinating look at the amazing and clever techniques used to solve crimes.