Reuniting with director Joel Hopkins for the first time since 2008's Last Chance Harvey, Academy Award-winner Emma Thompson plays Kate, whose biting banter with ex-husband Richard (Pierce Brosnan) suggests that the embers of their former ardour haven't been fully extinguished.

When an unscrupulous French financier steals their nest egg to buy a $10 million diamond for his bride-to-be, the divorced duo grudgingly agree to hatch a plot to nab the rock.