A tennis legend, “Yoyo” Johann Arnaldo, dies live on court during the New York tennis tournament. Elsbeth, who observes the investigation by the Sensitive Affairs unit, alerted by the strange attitude of Cliff McGrath, the father and trainer of Yoyo’s opponent, suspects that it is a homicide. His involvement in the investigation led by Lieutenant Smullen will reveal the inglorious underbelly of professional tennis…