In 1856 Philadelphia, a cross-dressing runaway slave named Genie Oliver uses her dress shop as a front for her work with the Underground Railroad. Reluctant white heiress Abby Read runs a rooming house, not only because she rejects the life of an idle society woman, but because she has no intention ever to marry a man. After the young daughter of Abby's free black servant, Maggie, is grabbed by rogue slave catchers and later recovered, Abby joins...