Three girls-Ella Carter, Mia Albright, and Sophia Albright-take up a seemingly simple summer job: maintaining an antique house belonging to Ella's grandmother; Beatrice Carter. Drawn by the allure of a generous paycheck, they soon find themselves entangled in a web of strange rules, eerie happenings, and cryptic guests. As the summer progresses, the house's secrets begin to unravel-along with their sanity. One of them will not make it out alive, and the remaining must discover whether the rules are safeguards... or traps.