Their connection at the wedding seals their destiny, even though it’s thwarted in the short term by a set of hurdles: David has been disappointed by too many women; Sarah has broken too many men’s hearts. (She even self-shames as a serial cheater.) Their G.P.S.-guided journey is transparently devised to overcome their resistance to each other—by way of reconciling them to themselves. The G.P.S. voice directs both Sarah and David through a variety of landscapes containing magical doors that they must open and pass through, disappearing as they cross the thresholds and emerging in places and situations from earlier in their lives.journey-inline-newsletterinline-newsletter