When a devastating accident nearly kills Gabby and renders her in a vegetative state, Marcus stands determined to make good on his promise to marry her. Challenged by this unfortunate event, Marcus meets Elliot Thurston, a published author of the novel "Brilliant Mistakes," a story about the author's personal regret. A fan of Elliot's writing, Marcus forms with him a bond of common loss, dreams and goals. While Elliot brings color and life to Marcus' seemingly uncertain future, Marcus' trust in others is soon yet again shattered. Brilliant Mistakes' hopeful and inspirational ending will undoubtedly leave audiences' hearts unable to quite fit in their chests.