The screenplay tells the story of the toxic relationship between two strong, independent women who are aware that they are alone in the world Beatriz, who has apparently achieved everything in life that she set out to do; and Sofía, who thinks she is ready to do whatever it takes to get the life she believes she deserv…

一晚，三位姊妹潛进一位參議員的家，欲偷走他透過賄賂得來的錢。進行到一半時，她們聽見地下室傳來希罕的聲音，決定前往調查。她們發現一位看似遭到殘忍凌虐的女孩被綁在床上。　　這個半身不遂的女孩請求她們救她，她們也決定幫她。但她們不知道的是，這個女孩並不是遭到凌虐，而是被一個強大的阴郁实力附身，它將打開另一個世界的大門。