John and his buddy Jeremy are emotional criminals who know how to use a woman's hopes and dreams for their own carnal gain. Their modus operandi: crashing weddings. Normally, they meet guests who want to toast the romantic day with a random hook-up. But when John meets Claire, he discovers what true love – and heartache – feels like.
When Larry and Maria learn that their respective spouses are cheating on them, they try to turn the tables on them by pretending to have an affair. However, they soon find themselves falling in love.
Abby McClure, a widow with three sons, and Jake Iverson, a widower with a teenage daughter, begin dating and eventually decide to get married. But they're not prepared for the hostile reactions from their children, who are not very excited about the new union between the two families.