Liv Mehlmann wants to throw an unforgettable birthday party for her daughter Alicia (14). But when she sends a message to the “Holy Moms” chat group that the precocious Rosie will also attend the party, the helicopter moms freak out. Rosie is not a good influence, she’s got to go, immediately. Liv becomes a tool for social exclusion and ends up being marginalized herself. Teenagers don’t have it easy. But mothers, whose social status is wavering, get their just deserts, too.