Set in Ireland, The March Hare stars Terence Morgan as Sir Charles Hare, a wastrelly aristocrat who gambles away his family fortune. About to be evicted from his ancestral racing stables, Hare decides to stay on when he's mistaken for a groom by the new American owner's pretty daughter Pat Maguire (Peggy Cummins). Continuing to conceal his true identity, Hare helps Pat to raise a colt for racing purposes, leading to a lengthy but exciting Derby Day finale. Though The March Hare has lapsed into public domain, most existing prints retain the vivid color cinematography of Patrick Hildyard. The film was based on Gamblers Sometimes Win, a novel by Captain Field. ~ Hal Erickson, All Movie Guide