They were best friends. Then one day they were not. Then things got complicated. In Her Neighbor by D.A. Olivier, nine-year-old Julienne goes to live with her aunt and uncle. Her next-door neighbor is a boy named Daniel. Being friends when they are children is simple. Being friends as adults is harder. Daniel is an artist with a penchant for whiskey and one-night stands. Julienne is a wife, a mother, and a teacher. Julienne and Daniel are loyal to each other through marriage, miscarriage, divorce, addiction, and death. When their friendship reaches a crossroads, they must decide how they will proceed, possibly not being in each other's lives at all. Her Neighbor follows the bond between Julienne and Daniel and asks, how far can loyalty and love be tested?