1916. Pretty Eithne Clay runs a ramshackle South London boarding house with the help of her teenage son, Ralph, and their maid, Winnie. Struggling to keep herself, her lodgers, and her son going as every day life vanishes in the face of war, Eithne’s world is transformed by the arrival of Mr Turk, the virile, carnal, carnivorous local butcher who falls passionately in love with her. As the house bursts to life with the electricity – metaphorical and real – he brings, dark secrets come to light.