AllMovie

A glamorous American woman enters into a spirited battle of wits with her disapproving English mother-in-law in this period romantic comedy. John Whittaker (Ben Barnes) and Larita Huntington (Jessica Biel) married in haste following a whirlwind romance. But reality comes knocking when the couple arrives to visit John's parents and his mother has an allergic reaction to her new daughter-in-law. As the battle of wits between the two women escalates, John and Larita's marriage begins to suffer.