In “The Other Woman,” Queen, grappling with a strained marriage, shares her story with a psychologist, prompted by the question, “What changed?” The film unfolds as a memory, beginning with Frank, Queen’s husband, celebrating their 25th anniversary. Post-party, Frank, with friends Jide and Balogun, attends a painting exhibition where he meets Amanda under a false identity. As Queen suspects infidelity, her encounter with Amanda unravels hidden truths, setting the stage for emotional revelations.