Martha Beck, an obese nurse who is desperately lonely, joins a "correspondence club" and finds a romantic pen pal in Ray Fernandez. Martha falls hard for Ray, and is intent on sticking with him even when she discovers he's a con man who seduces lonely single women, kills them and then takes their money. She poses as Ray's sister and joins Ray on a wild killing spree, fueled by her lingering concern that Ray will leave her for one of his marks.

This documentary portrait is the first to celebrate the only American member of the French Impressionist school and the first American woman to become a famous painter. 'Mary Cassatt Impressionist From Philadelphia' is not only a biography of the artist’s life and work; the film sees both in the context of the status of the woman painter in Victorian America in the second half of the 19th century.