Based on the best-selling memoirs of former nurse Jennifer Worth, who died shortly before the first episode was broadcast, set in the late 1950s and early 1960s and for the first three series centred primarily on Jenny Lee (Jessica Raine), who, in the first episode, begins a new job as a midwife at a nursing convent in the deprived Poplar district of London. Season 7 of this is released on 25 December 2017 with Christmas special.