How far can you trust even those you love?
Richard and Lelia's child is conceived in a moment of giggling chaos as they dress for a Christmas party. When they arrive, rudely late and still glowing, they barely register a slight, drab woman in the hall. Sylvie.
As their unborn baby grows, so does the presence of that barely noticeable figure. Slowly Richard finds himself seduced by Sylvie's subtle, almost imperceptible charm. While Richard grows more ambivalent about the approaching birth of his child, Lelia finds herself haunted by painful secrets of her past, and Sylvie seems to be nowhere, yet everywhere. She's as invisible as she wants to be, and that is he source of her power.