Robert Cole (Albert Brooks) is a Hollywood film editor right in the middle of cutting a new science fiction film featuring George Kennedy. His relationship with very patient bank executive Mary Harvard (Kathryn Harrold) is caught between undying devotion and endless agony. It’s all because selfish Robert is a bit of a self-involved neurotic who can’t quite decide if their relationship is meant to be, mainly because he’s not sure if she’s the one or there’s someone else.
Robert breaks off their relationship only to find that modern romance isn’t as easy as it seems, and the people you love might be the ones you constantly hurt the most. He and Mary end up driving to a cabin in Idyllwild, California, where intense jealousy causes Robert to alternately accuse and annoy Mary and propose marriage to her.