Wei Liu is a student from China. He studies English in New York. He has a part-time job in a hotel. One day, he finds a diamond necklace in the tissue box in a hotel room. Whose necklace is it? Why is it in the tissue box? The manager calls the police. Wei is in trouble. Yesterday, someone took the necklace from a jewellery shop. The police want to talk to Wei, but he has an important test at college. Can he get out of trouble and take the test?