Two 29-year-old women, Abigail Scanlon and Parker Wald are best friends and have been best friends since childhood who return to their small hometown of Lambert, Louisiana from New York City for a visit.<ref name=":0"></ref> After running into old friends, they learn that their close friend, Rachel, has lost the love of her life, Tony, to their ex-friend, Caitlin, a conniving gold-digger who pretends to be pregnant to trick Tony into marrying her so that she can use his money to keep her family's estate. Intent upon preventing a loveless marriage, Parker and Abigail go "undercover" as Caitlin's bridesmaids to sabotage the wedding. Along the way, Caitlin's tightly-wound mother, Olivia, works hard to keep Abigail and Parker at bay as Parker falls for the town detective Henry Kent. The bridesmaids put their best-laid plans in motion only to see them go outrageously awry. As a result, the trio are arrested by Henry, but Parker convinces him to release them. So Abigail, Parker, and Rachel sneak into the wedding and kidnap Caitlin. They take her to the hospital for a pregnancy test and trick her into admitting the truth. At the wedding ceremony Tony lies to Caitlin that his family lost their fortunes which leads to her canceling the wedding and storming off. After Caitlin is gone, Tony gets on one knee and proposes to Rachel and reveals that he lied and that he is still rich.