讲述只有3.5颗星评价的妹妹(温贞菱饰),人生最大梦想是打败5颗星的姐姐(李霈瑜饰)。。苏可可,一名丧母的外卖员,在机缘下助了首富爷爷傅爷爷,随后被安排与首富之孙傅南城相亲。为偿还母亲医疗债,她接受20万彩礼成为傅南城的妻子。傅南城因婚事系爷爷安排,对苏可可保持戒心并隐藏真实身份。。A post-war housing crisis leaves a shy woman to share a house with two couples. Comic situations arise as the new roomer becomes infatuated with one of the husbands.。