In the quiet, leafy suburbs, two marriages quietly unravel in this intense domestic drama directed by John Curran. English professors Jack Linden (Mark Ruffalo) and Hank Evans (Peter Krause) are best friends, as are their wives, Terry (Laura Dern) and Edith (Naomi Watts). Beneath the surface of shared dinners and family outings simmers a dangerous current of dissatisfaction and desire, leading to a clandestine affair that threatens to destroy both households. As Jack grapples with his own infidelity and artistic stagnation, and Terry endures his emotional neglect, their crumbling relationship mirrors the discontent in the seemingly more stable union of Hank and Edith. The film delves into the raw, uncomfortable truths of commitment, betrayal, and the painful search for identity within the confines of marriage. With searing performances from its ensemble cast, this R-rated drama paints a stark and emotionally charged portrait of four people navigating the treacherous terrain between friendship and passion, obligation and freedom.