"Mrs. Winterbourne" is a charming romantic comedy that follows the life of a young woman named Connie Doyle, played by the talented Ricki Lake. Struggling to find her place in the world, Connie's life takes an unexpected turn when she boards a train to Boston, hoping to escape her troubles. A chance encounter leads to a whirlwind romance with a wealthy man, but tragedy strikes when he dies in a tragic accident.

In a twist of fate, Connie is mistaken for the deceased man's wife, the elegant and affluent Mrs. Winterbourne. Embracing this new identity, she is swept into a world of privilege and sophistication, living in the opulent Winterbourne estate. As she navigates the complexities of her new life, Connie finds herself entangled in a web of family secrets, love, and deception.

Throughout the film, themes of self-discovery and the pursuit of happiness are explored, as Connie learns to embrace her true self while grappling with the consequences of her deception. With a delightful mix of humor and heartwarming moments, "Mrs. Winterbourne" ultimately reveals that love can be found in the most unexpected places, and that sometimes, a little bit of luck can change everything.