One radiant woman in her golden years is given a second chance at love. The men vying for her final rose have journeyed through the highs and lows of love, navigating moments of joy and heartbreak, and they arrive with anticipation, eager to foster a connection that sparks a future of limitless possibilities.
In 1943 Shanghai, an explosion leads to a showdown between Communist undercover agent Lu Zhengyang and former police officer Lin Shaobai. Six years later, Lu Zhengyang, now a key member of the Shanghai Public Security Bureau, recruits Lin Shaobai, the "Shanghai Expert," to tackle major cases and thwart the plots of veteran spy Zheng Lanting. As they work together, Lu Zhengyang and Lin Shaobai build trust and become close comrades.