Maggie's plan to have a baby on her own with a sperm donor is derailed when she falls in love with John, an older married professor, destroying his volatile marriage to the brilliant and impossible Georgette. But three years later, married to John with one daughter, Maggie is out of love and in a quandary: what do you do when you suspect your man and his ex-wife are actually perfect for each other?
Greta Gerwig
as Maggie Hardin
Ethan Hawke
as John Harding
Julianne Moore
as Georgette Nørgaard
Bill Hader
as Tony
Maya Rudolph
as Felicia
Travis Fimmel
as Guy Childers
Mina Sundwall
as Justine Harding
Jackson Frazer
as Paul Harding
Ida Rohatyn
as Lily Harding
Wallace Shawn
as Kliegler
Alex Morf
as Al Bentwaithe
Sue Jean Kim
as Komiko
