Kind Hearts and Coronets (1949)

Synopsis
Alec Guinness gets to die eight times, playing a line of successors to a dukedom, in the Ealing black comedy Kind Hearts and Coronets. Louis Mazzini (Dennis Price) is ninth in line to inherit the dukedom from the aristocratic D'Ascoyne family. Louis vows to kill all eight people who stand between him and the duke's title. Aside from two cases of natural causes, Louis works through the list, eliminating rivals (all played by Guinness). Along the way he romances Sibella (Joan Greenwood), a childhood friend who ends up marrying a dullard, and Edith (Valerie Hobson), the beautiful widow of one of his victims with whom he plans to share his title. But just when Louis is ready to assume the D'Ascoyne mantle, a bizarre irony strikes. ~ Paul Brenner, All Movie Guide