After ten years abroad, Catherine returns to Luxembourg to catch up with her daughter Alba, brought up by Catherine's mother Elisabeth. She then kidnaps Alba and takes her on a trip to a lake up ...

穿过千千万万时间线，跨越漫长岁月去寻找曾经的爱人。只是平行时空，重新认识，她还会爱上他吗？一次激烈的争吵，一场意外的时空旅行，拉斐尔（弗朗索瓦·西维尔饰）从一名成功的畅销书作家，变成平庸的中学语文老师；妻子奥莉薇亚（约瑟芬·约比饰）从家庭主妇成为了星光熠熠的著名钢琴家。再相遇，身份颠倒，不再是夫妻，平行时空又一次浪漫邂逅，拉斐尔能否守住最初的爱情？...