That Pig, Morin! is loosely based on the short story Ce cochon de Morin by Guy de Maupassant. France, the late nineteenth century: small-town draper Morin, returning from business in Paris, is accused of advances towards a young woman on a train. His home town's most eminent man (and most eligible bachelor), Labarbe, has his own reasons for interceding on Morin’s behalf, and soon meets Morin's alleged victim, the delectable Henriette…