Five novels about finding love in the darkness

At The Barnes & Noble Book Blog Dell Villa tagged five "contemporary novels abound with bittersweet tales of romance found under the bleakest of circumstances," including:
Lovers at the Chameleon Club Paris, 1932, by Francine Prose

Bohemian Paris in the 1930s was a haven for artists of all ilk. Painters, musicians, writers, and photographers flocked to the thriving, throbbing city for