Rahul, a young and charming consultant who works in San Diego, California, goes on a business trip to London where he meets beautiful Priya. They feel an instant attraction towards each other; However, Priya being shy and un-trusting, holds back her emotions when Rahul returns to San Diego. Rahul also finds himself getting attracted to Mona, a co-worker in his office. As the story progresses, Rahul is torn between his feelings for Priya as well as Mona. As we follow the two love stories, we wait for the inevitable reckoning to be made between love and true love. Lost in London is an exploration of finding and recognizing true love.