Two young men, Ye-joon and Jae-moon, have been close friends since doing military service together. Ye-joon has lately worked his way up to becoming a successful financier, while the unambitious Jae-moon has opted for a much less conspicuous route. He now works as a cook and is enjoying family life with his wife Ji-sook and their new-born son. Ji-sook tolerates her husband’s attachment to his friend, but everything changes after the tragic death of the child, caused by Ye-joon. Ji-sook was in Paris when the tragedy occurred and isn’t aware of the circumstances; she even starts an affair with Ye-joon when her husband is imprisoned after taking the blame for his son’s death. Relationships which were originally crystal-clear begin to grow distinctly cloudy.

1707年11月20日。
开张大吉的荣华馆坐落在繁华的汉阳城的一角，外观是平凡的医疗院，实际上则是以有着超凡魅力的桂月（李日花饰）为领袖的，和泰熙（徐英饰）等一群亲如其女儿一般的美艳女子经营的妓女坊，与众不同的是，这群女子掌握着高超的中医医学知识，苦于在妻子那里得不到性满足的义禁府官员……城中有名望的男子们纷纷慕名而来，欢喜而去。
原本平静的风花雪月被连环的杀人事件打破了，在荣华馆相继发现被切...

百年药厂承工制药的老板李总（刘桦 饰），决定炒楼盘卖地，不想再卖药了。他重金聘请的香港高管阮大志（林俊贤 饰）牵线找来日本的买家宫下先生。不想，宫下看中的只是能够治愈失眠的玉露散神片的独家配方。
就在双方谈判陷入僵局之时，声称手握秘方的“神秘人S”的出现更让谈判迷雾 重重。承工制药厂销售总监林以泰（苏有朋 饰）是一名重度失眠患者，整日似梦非醒唯唯诺诺工作的他，却阴差阳错洞悉S与日本买家的交易。
成为捉鬼人后，林以泰发觉无论是直属上司阮大志（林俊贤 饰）、关系暧昧的高级文秘安淇儿（陈乔恩 饰）、还是日方代表的妖娆助理梅川美纪子（洪晓熙 饰）每个人都心怀鬼胎，甚至他最信任的药厂员工老宋（由立平 饰）都行为古怪，每个人都是最佳嫌疑人！而此时，躲在某个角落的内鬼“神秘人S”却对所有人的一举一动都了如指掌……

许秀京（洪晓熙 饰）是电视台的女主播，因为迷恋着“普州太后许黄玉”的传说，她抛弃了所拥有的一切，千里迢迢来到中国圆梦。曲珍（金莎 饰）本是默默无闻的家政员，一场突如其来的车祸彻底改变了她平凡的生活。
缘分让这两个个性和境遇迥异但同样善良坚强的姑娘走到了一起，同时和她们相遇的还有正直的青年周诺（立威廉 饰）。平静的外表之下，许秀京隐藏了一个充满了酸楚的秘密；曲珍的坚强掩盖了灵魂深处的脆弱；周诺死守着一段给他带来伤痛的回忆。三个人，三段感情交织，青涩的爱情就像柠檬的滋味，在青涩和酸楚的背后，他们是否能够迎来甜蜜？

2010 film directed by Lee Jeong-beom