Xiaoma, a young woman who has recently moved to Beijing, finds an apartment in an old courtyard apartment complex owned by Grandma, an elderly woman. Xiaoma and Grandma’s relationship almost immediately becomes strained. After trying to tidy up the courtyard, Grandma insists that Xiaoma turn over her share of the profits. Tightfisted, the elderly landlady resists even allowing Xiaoma to install a telephone. At the same time the older woman becomes increasingly interested in Xiaoma’s personal (and romantic) life. Grandma, for example, tries to pass off her grandson to the younger woman. Annoyed, Xiaoma nevertheless is flattered at the older woman’s concern. Over the course of four seasons, Xiaoma begins to learn from her landlady of the old world that the modern city of Beijing has left behind, while Grandma begins to enjoy the youth and vitality of her tenant. The two women become closer and eventually develop a deep friendship.

三十年代纵横西北的土匪胡栓子殒命刹马镇，而传说中他留下的宝藏也埋在了这里……多年之后，刹马镇村长唐高鹏（孙红雷 饰）为了发展经济，携带数件“文物”寻求专家鉴宝，希望达到宣传效果，而此行中，他拿出的胡栓子留下的金牌引起了文物大盗周定邦（李立群 饰）的注意，周定邦了解此金牌中隐藏了胡栓子宝藏的秘密，遂与毛总（黄海波 饰）合作，前往刹马镇以发展经济为名寻找宝藏。另一方面，周定邦派出的手下在刹马镇打听消息，阴错阳差将这里埋有宝藏的消息广播给全镇村民。唐高鹏与老相好春娘（林志玲 饰）等人希望发展旅游事业，周定邦一行的到来点燃了他们致富的梦想，而众人心照不宣关于宝藏的秘密则引发了各方一轮轮的明争暗斗……