Cecilia and Emma were tween-age BFFs who were going to grow old together and never let anything come between them, until Alex arrived on the scene. Twelve years later, Cecilia is a successful social media influencer living the dream of an independent, modern millennial woman... until she runs into Emma for the first time in over a decade. Emma invites Cecilia away on her bachelorette weekend at a remote cabin in the mountains, where Alex proceeds to make Cecilia’s weekend a living hell.