Meet Frost, Morgan, and Belle - a wealthy group of New York City moms. Their children attend Atherton Academy, the top private school in the city. On the first day of school, the arrival of a new mom, Sofia, shakes up their world. When Sofia quickly integrates herself into their clique, inexplicably bad things start to happen to the women. Is someone out to get them? Spanning the course of one eventful school year, Mean Moms is part satire of upper-crust mom-ing and part mystery, interrogating the line between friendship and jealousy, and getting at the question: What would happen if the woman standing next to you at school pickup was actually a sociopath?