There are five person lost their wallets in the airplane for two months.Who is the thief? Is it a same person or different ones? The police is very anxious,many ways are thought but didn't make it.One day,a police took the list of names with this five times taking by plane,and put it together to check it again and again carefully.Suddenly,his eyes are startled by the middle of one piece of paper.Few days later,the police followed a man to fly to Beijing.
