Now that her brilliant botanist daughter is off at college, Maeve Cosgrove loves her job at a quiet Maine public library more than anything. But when a teenager accuses Maeve of spying on her romantic escapades in the mezzanine bathroom, she winds up laid off and humiliated. Stuck at home in a tailspin, Maeve cares for the mysterious plants in her daughter’s greenhouse while obsessing over the clearly troubled girl at the source of the rumor. She hopes to have a powerful ally in her attempts to clear her name: her favorite author, Harrison Riddles, who has finally responded to her adoring letters and accepted an invitation to speak at the library. Riddles, meanwhile, announces a plan to write a novel about another young library patron, Sudanese refugee Willie, and enlists Maeve’s help in convincing him to participate.