In the affluent suburb of Grosse Pointe, four garden club members—teacher and aspiring writer Alice (AnnaSophia Robb), real estate agent Catherine (Aja Naomi King), father of two Brett (Ben Rappaport), and socialite Birdie (Melissa Fumero)—become entangled in a scandalous murder. On the night of the club's annual gala, they unite to bury a body in their own garden, striving to maintain their flawless exteriors as dark secrets threaten to surface.