Iris (Juno Temple) and Catherine (Julia Garner), childhood friends, reunite for a humid New England Summer. As they enjoy typical summer activities, their shared past trauma becomes increasingly difficult to suppress. Haunted by memories, they find their bond strained and seek refuge in forbidden affairs. Catherine pursues a former crush turned enemy, while Iris finds solace in her older, married college advisor Gerald (Alessandro Nivola), who is also at a crossroads in his life