Luna, Phoenix, Queen

Dava and Barr, professors at a Midwestern university, both harbor potent secrets. But Dava is unhappy in their marriage, and secretly in love with a colleague; spurred by their complicated liaison, she spends her nights working on a novel. Though she loves the work and the refuge it provides, the writing becomes increasingly difficult as her memory begins to fail; tests reveal that she's suffering from early-onset Alzheimer's.