Murphy's Law S01 E05 Kiss and Tell

"A maverick Irish cop takes on the LONDON Crime World"

Following a bungled attempt to close down an elaborate Russian crime-ring, Murphy and Guthrie find themselves embroiled in what appears to be a textbook crime of passion. An unknown blonde is busy murdering London's successful businesspeople. The only link is that all the victims are members of a state-of-the-art health club in the heart of the City.