Elizabeth Kirbridge gives birth to a daughter, Lucy Elizabeth, in a London nursing home.
To avoid scandal and since Lawrence is the legal father, he is asked to attend the baby's christening.
Elizabeth, lacking maternal feelings, is indifferent to the baby and content to have Lucy be brought up in the nursery by a very old and ill nanny.
But later Sarah becomes Baby Lucy's nursery maid and she saves Elizabeth's baby from the clumsy hands of Nanny Webster.
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