They're getting hitched.

When Rachel Silverstein and her longtime boyfriend Dan Gershon decide to get engaged, they hardly expect that planning a wedding will be more difficult than any life changes they've braved in the five years they've been dating. After all, they already live together. But suddenly everyone from parents to friends to cousins to caterers seems to be losing their minds completely. Surely it can't all be in Rachel's head. Can it?

She's going insane.

Between her budget-crazed father, her flighty mother, her stepmother, her seemingly perfectly well-meaning in-laws, and a fiancé who's suddenly questioning the very institution of marriage, Rachel's barely holding it together. If the guest-list wars and menu battles don't kill her, the dress-shopping will. And what's it going to take for Dan to step up and realize that his beloved future bride needs his help coping with the madness if she's ever going to make it to the altar?