Jack is a sharp, neurotic New York interior designer; his girlfriend Marion is a smart, sometimes cagey, French photographer. They've been together in New York for two years and are about to spend two days in Paris. The trip puts their relationship to the ultimate test. Marion and Jack uncover more cracks in their compatibility as they travel around town. He is shocked by her erratic temper, evidenced by outbursts at a racist Parisian taxi driver, at ex-boyfriends, or anyone else who rubs her the wrong way. As he meets one overly-friendly male acquaintance after another, Jack is consumed by jealousy and wonders what Marion has kept from him about her romantic past. The snowballing mystery in Jack's mind threatens to end their relationship in utter disaster. As a writer-director-producer-editor-composer-star, Delpy deftly handles her multiple responsibilities, weaving brilliant humor with a myriad of intellectual, political and psychological musings. Whether considering Jack and Marion's relationship, or the world at large, she takes the stereotypical French versus American debates further and deeper, playing on both truth and the often total absurdity of this complex relationship.