The woman in the purple skirt : a novel
(Book)

Almost every afternoon, the Woman in the Purple Skirt sits on the same park bench, where she eats a cream bun while the local children make a game of trying to get her attention. Unbeknownst to her, she is being watched--by the Woman in the Yellow Cardigan, who is always perched just out of sight, monitoring which buses she takes, what she eats, whom she speaks to. From a distance, the Woman in the Purple Skirt looks like a schoolgirl, but there are age spots on her face, and her hair is dry and stiff. She is single, she lives in a small apartment, and she is short on money--just like the Woman in the Yellow Cardigan, who lures her to a job as a housekeeper at a hotel, where she too is a housekeeper. Soon, the Woman in the Purple Skirt is having an affair with the boss and all eyes are on her. But no one knows or cares about the Woman in the Yellow Cardigan. That's the difference between her and the Woman in the Purple Skirt. --from Amazon.