本劇背景時空為即將進入20世紀之際,一名年輕英俊的警探William Murdoch(Yannick Bisson飾)運用在當時來說相對先進的技術調查及解決城中最可怕的謀殺案件。儘管他運用的手段超乎常規而時常引起上級質疑,然而事實證明許多棘手的案件只有Murdoch能破解。本季中最讓人關心的話題便是警探Murdoch在Ogden博士離開後能否自立自強?自從Ogden博士離開六個月後,所有的事情都亂了套,而前來頂替Ogden博士的Francis博士似乎又不能達到Murdoch嚴謹的破案標準。本季的調查包括一宗屍塊被灌入水泥的案件、一名銀行搶匪脫逃在外以及一宗《愛莉絲夢遊仙境》主題派對的謀殺案件,Murdoch必須尋求所有協助,以順利破案。
Set at the turn of last century, Yannick Bisson stars as William Murdoch, a handsome young detective who uses radical forensic techniques for the time to solve some of the city’s most gruesome murders. Though his unconventional approach elicits scepticism from his boss, Murdoch is often the only one who can crack the case. Can Detective Murdoch live life without Dr. Ogden? Six months after her departure, things appear to be falling apart for Murdoch. Dr. Francis, her replacement, doesn’t quite meet Murdoch’s lofty crime-solving standards. When body parts turn up encased in cement, a kissing bank robber goes on the loose, and an Alice in Wonderland-themed party ends in a bloody murder, Murdoch needs all the help he can get.