Police officer Pang Hong Mei amid the many obstacles created by U.S. and Jiang spy agents, rescued Ji Danyang, a patriotic scientist who returned from the United States from the enemy spy. She accompanied Ji Danyang to Lumen City to participate in the "Water Drop Project". Enemy special forces formulated a sabotage plan codenamed "Operation Rock" and concentrated their forces and tried to destroy the "Water Drop Project." Pang Hongmei and Ji Dan Yang fought a life-and-death battle with enemy agents in Lumen, thwarted the enemy's conspiracy, protected the "Water Drop Project" and finally achieved the expected success. The couple who went through the test of life and death, also realized their dreams and firm ideals.
If you like Fall in Love you will also like Siege in the Fog. There is multiple couple involved and a love triangle among the main leads (obviously) and the same set location! Both dramas involve a Chines Republican Era romance and politics, among other genres like actions, drama, investigation, military, high end elites (warlords)...you get the gist.
Both are about the path of a young man who first pays allegiance to GMD, and next decides to shift to the Communist side, and it is mostly set in Shanghai. But instead of slums, it pictures palaces and instead of a Bank, it centers around the Military Command of the city and its cotton imports and industry.
Alrhough its not the same era or custume style, they still both have the same strong and smart leads. This one has a smart female lead that is from a rich family and a strong cunning male lead that is a soldier/commander. Since TLB made you cry for numerous deaths, this one would also make you cry just like TLB.