The body of an elderly Chinese importer of rare jade lies on the carpet of a quietly expensive house in Pasadena, California. In a rough semicircle around his head rest four pieces of jade; protruding from the heart is a fifth-the Ya-Chang ritual knife.

Who murdered the importer? Was it Yumeko, the beautiful half-black, half-Japanese girl who lived with him? Johnny Wu, a rich Chinese-American? Another customer? Or a political enemy from overseas?

Black homicide detective Virgil Tibbs finds himself in the middle of a deadly situation involving hard drugs, Communist Chinese agents, and the exotic settings of the jade trade as he coolly tracks down the murderer.