When Marni, a successful and charming young woman, returns home for her brother's wedding, she encounters an unexpected twist: her future sister-in-law is the same girl who bullied her in high school. Joana, now a confident and seemingly perfect woman, has turned Marni's worst school nightmare into a blurry memory. As Marni grapples with this revelation, the situation becomes even more complicated when her mother, Gail, reveals that she also has a history with Joana's mother, an old rival she thought she had left behind.
Amid laughter, misunderstandings, and generational rivalries, Marni embarks on a journey of self-acceptance and redemption. The comedy escalates when the wedding turns into a battleground filled with old grudges and absurd situations. The two families find themselves caught in a whirlwind of emotions, revelations, and a couple of secrets that should never have come to light.
As Marni tries to confront her past and come to terms with her old insecurities, she discovers that there is more at stake than just a wedding. The film serves as a funny and touching reminder of the power of forgiveness, the value of second chances, and the importance of being true to oneself. Ultimately, it is not just a struggle between two women, but an exploration of how the past and present can intertwine in the most unexpected ways.