New York City is subsumed in arctic winds, dark nights, and white lights, its life unfolds, for it is an extraordinary hive of the imagination, the greatest house ever built, and nothing exists that can check its vitality. One night in winter, Peter Lake (Colin Farrell), orphan and master-mechanic, attempts to rob a fortress-like mansion on the Upper West Side. Though he thinks the house is empty, the daughter of the house is home. Thus begins the love between Peter, an Irish burglar in his early 20's, and Beverly Penn (Jessica Brown Findlay), a young girl, who is dying.