Marlo is a grandmother whose third child is still an infant. It is not easy to deal with everything, and at the end of the day she is just walking out of fatigue, so her brother gives her an unexpected gift - a babysitter for the night. Marlo is reluctant to let a stranger into her house, but gradually realizes how fortunate she has been with this meticulous, surprising, and sometimes annoying young nanny named Talia.