Ireland; 1900s. Catholic landowners of a former Protestant estate are under attack from political activists wanting to divide the land and impoverish the family.
Night after night, John Connell patrols Lake House, a Catholic estate in Co. Roscommon. Behind the walls of the old house, the family exist in fear of attacks on the property, or the sound of hooves on cobbles. Under cover of night, Fianna Fail activists creep around the house, unlocking outhouses, forcing animals through the archway onto the road outside. Enmity, bitterness and hatred stalk the Connells. Years pass before the mantle of responsibility is forced upon Tom Cowman, Ciss Connell’s son. Will he restore the estate, or lose it forever?