Nick and Deborah Fifer, a married couple living in Los Angeles, prepare to celebrate their 16th wedding anniversary. Nick is a successful sports lawyer, while Deborah is a prominent psychotherapist and author. With excitement for the day, they decide to spend it at an upscale shopping mall, picking out gifts for each other and attending a movie screening. Amid the festivities, their seemingly perfect relationship begins to unravel. In the mall, Nick impulsively confesses to having had an affair, triggering a series of emotional confrontations. Deborah reacts with a mix of shock, anger, and hurt, challenging the foundation of their marriage.

As they wander from store to store, the couple experiences heated arguments and unexpected moments of reconciliation, peppered with humorous and poignant reflections on their life together. They encounter a variety of eccentric characters that add to the chaos and stress of the day. All the while, they must navigate their feelings and re-evaluate their relationship. Tensions rise, and emotions run high, as Nick and Deborah confront the truth of their marriage and themselves. The day at the mall turns into a test of their love, loyalty, and resilience.