Pigeons can recognize their way home, but there are also pigeons that never return. The pigeon with the number 043 on its ankle ring disappeared seven years ago due to a race, but now it suddenly appeared, reminding the family of the pigeon keeper of their painful memories. A grumpy professional pigeon racer, Mr. Chin, is addicted to pigeon racing. His son left for school and never came back, and after seven years of disappearance, he can apply for a declaration of death, but he and his wife, Min, have a disagreement. Their daughter, Lulu, has entered a period of youthful rebellion and feels that her home is a birdcage. Tiger, a homeless teenager, breaks into the family and is about to witness a storm coming. ......