该剧讲述主人公因一封信触发命运交叠，逐步揭晓往事悬念的情感故事。一个邮筒、一封信，促成跨时空的命运联动，也唤起时空两端的情感交响。随着跨越时空的十二封通信，一群人爱情、友情与亲情交织的过往被揭开，命运悬念走向明朗的同时，也完成了对于主人公们的情感救赎。该剧以奇幻设定做壳，以命运悬念为饵，以细腻情感成核，层次饱满，以信件作为传递情感与爱的载体，讲述跨越时空的动人故事。

刑警姜光明（马伊琍 饰）和石落（高至霆 饰）在调查一起案件时，偶然发现作家顾己鸣（佟大为 饰）的小说中所描绘的犯罪现场与自己正在调查的案发现场离奇重合，虚构与现实交错，一切真的只是巧合？而小说的出现也为二人的追查提供了新的方向，但与此同时也将他们引向了更深的迷局......案中案，谜中谜，隐藏在幕后的凶手究竟是谁？
该剧改编自松本清张同名小说。

Set during China's the Warring States Period (476-221 BC), benevolent warrior Chenkang Lu (Joe Odagiri) enters into a torrid love affair with a woman (Maggie Q) from the nomadic Harran tribe. Their relationship sends the warrior to a place where humans were once wolves...

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.

2008 film directed by Ma Liwen