Annie (Kristen Wiig), the maid of honor, whose life is on the ground as he leads his best friend, Lillian (Maya Rudolph), and a series of colored bridesmaids (Rose Byrne, Melissa McCarthy, Wendi McLendon-Covey, and Ellie Kemper) is a wild ride down the road to marriage. Annie's life is a mess. But when he learns of his life best friend is involved, he simply must act Bridesmaid Lillian. Even if the love and broke, Annie bluffing his way through the expensive and strange rituals. When a perfect opportunity to do so, he'll show Lillian and her bridesmaids how far you can go to someone you love.