Professor James Murray begins work compiling words for the first edition of the Oxford English Dictionary in the mid 19th century, and receives over 10,000 entries from a patient at Broadmoor Criminal Lunatic Asylum, Dr. William Minor.

In 1847, when Ireland is in the grip of the Great Famine that has ravaged the country for two long years, Feeney, a hardened Irish Ranger who has been fighting for the British Army abroad, returns home to reunite with his estranged family, only to discover the cruelest reality, a black land where death reigns.