人到中年的安妮（克里斯汀·韦格 Kristen Wiig 饰）仍旧一事无成，浑噩度日。交往已久的男友只是把她当做情人，并无与她组建家庭的打算。此时，安妮的好友莉莉安（玛娅·鲁道夫 Maya Rudolph 饰）突然要结婚了，并邀请了包括她在内的几名女性好友组成伴娘团。伴 娘团之中的海伦（萝丝·拜恩 Rose Byrne 饰）家底深厚且八面玲珑，倾力为莉莉安打造奢华订婚礼。安妮不满海伦主导订婚礼筹备，处处与其针锋相对，试图向莉莉安昭告她深厚的情谊，但每次努力都令众人不悦，反而引致莉莉安的不满。 　　同时，安妮也开始面对人生中的诸多问题。交警罗兹（克里斯·奥多德 Chris O'Dow 饰）的出现似乎为安妮打开了另一扇窗。安妮能否摆脱这些困境，步入生活的正轨呢？Annie (Kristen Wiig), is a maid of honor whose life unravels as she leads her best friend, Lillian (Maya Rudolph), and a group of colorful bridesmaids (Rose Byrne, Melissa McCarthy, Wendi McLendon-Covey and Ellie Kemper) on a wild ride down the road to matrimony. Annie's life is a mess. But when she finds out her lifetime best friend is engaged, she simply must serve as Lillian's maid of honor. Though lovelorn and broke, Annie bluffs her way through the expensive and bizarre rituals. With one chance to get it perfect, she'll show Lillian and her bridesmaids just how far you'll go for someone you love.