 Due South is the story of Constable Benton Fraser of the Royal Canadian Mounted Police (portrayed by Paul Gross), who came to Chicago on the trail of the people who murdered his father. For reasons that don t need to be explored at this juncture, he stayed, as liaison to the Canadian Consulate. Partnered with Ray Vecchio (played by David Marciano for the first two seasons), he went around Chicago being polite and solving crimes by tasting things. At the beginning of the third season, however, Fraser took a vacation in Canada, and came back to find that someone was impersonating his partner. In fact, Stanley Raymond Kowalski (played by Callum Keith Rennie) was taking Ray Vecchio s place while Ray was undercover, as was learned later that episode. The series ended in 1998.