The plot: Mother-of-two Marlo (Charlize Theron) and her
husband Drew (Ron Livingston) are expecting their third child soon. However,
the stress of taking care of the two they already have has taken its toll on
Marlo. Her brother Craig (Mark Duplass) suggests that she hire a night nanny to
help around the house, and soon, Tully (Mackenzie Davis) arrives at Marlo’s
front door offering to help her. As the two connect, it seems that Marlo is
finally getting the support she needed and things are looking up… but how long
will it last?