Since they met at a party, ambitious high-flyer Nat (Byrne) and struggling novelist Josh (Spall) have been deliriously happy despite their differences. Josh is a thinker, Nat's a doer...but the spark between them is undeniable.

Their wedding is a dream come true, but family, friend and even the minister who marries them aren't convinced that they can last. Josh's ex-girlfriend, Chloe (Faris), and Nat's handsome American client Guy (Baker), could offer attractive alternatives.

With their first anniversary approaching, neither wants to be the first to give up, but will they make it?