Cheng, a novelist, once wrote a book about his father's disappearance twenty years ago. One day he receives a reader's email asking whether his father's bicycle disappeared as well. Perplexed and amused, Cheng decides to track down the bicycle, which was stolen years ago. The journey takes him to a scavenger's treasure trove, the mountain home of an aboriginal photographer, deep into the secret world of antique bicycle collectors, and ultimately to his own heart.