After she gives birth to her third child, Marlo is so overwhelmed by her responsibilities that she gives in to her brother's offer to hire her a night nanny. When the nanny, Tully, joins the household, she proves to be a godsend for Marlo, who quickly forms a bond with the younger woman.
Marlo is a mother of three, one of them being a newborn baby. She is gifted a night nanny by her brother. After she hesitates a bit in the beginning, she finds a great bond with the young girl, as the nanny affects her life massively, giving her more freedom.