《三城恋习曲》讲述了三个城市的不同流浪,三段情缘,淡淡的诉说着日子中的不安、纠结、不舍和爱。在装满了行行色色的的“三城恋习曲”的同时,谁会遇到谁,谁又该去哪。The lives of three generations of Asian immigrants play out across three different cities. In Bangkok, a young couple is making the move to the US. In Los Angeles, a woman marries into the family of a Japanese widower. And in Paris, a young man returns to his girlfriend as family trouble brews back home in L.A.