Violinist Lu Song (played by Chen Xiao) and interior designer Wen Ying (played by Du Juan) met in Paris. They fell in love with each other more and more. The name of love urged them to be bold for love again and get out of their own problematic emotional relationships. It seems that as long as the current becomes the ex, happiness will be at hand. However, the exes are also fighters. Wen Ying’s ex Zheng Ke (played by Hua Shao) is an extremely rational doctor, and Lu Song’s ex Liu Juan (played by Ma Su) started an endless war of words in the emotional community. Should they continue to insist on their belief in love, or choose to let go and forgive and start over? The emotional crisis of modern cities is staged on the streets of Beijing and Paris. The deeper you love, the more it is often the source of pain. Love is like a shadow, which cannot be caught but cannot be separated from, like a shadow following your heart...