Arabella, an aspiring fashion designer facing financial difficulties, lands a job as a personal shopper for Marylin, a thriving erotic novelist. One day, while Arabella is secretly trying on some of Marylin’s luxurious clothes, Marylin unexpectedly returns home early, accompanied by a handsome man who isn’t her husband. Arabella hides and observes as the two engage in an intimate encounter on the bed, which excites her. She continues to secretly watch Marylin’s numerous romantic escapades in the bedroom until one day, Marylin catches her. To Arabella’s surprise, Marylin reveals she was aware of Arabella’s presence all along. A passionate connection develops between them, but soon they face a threat from someone who knows about their relationship and is determined to end it.