When SFPD Homicide Detective, Eric “Chuck” Chiang investigates the murder of two Matsuda executives, his chief suspects become his father-in-law Yoshi Matsuda and his wife, Dr. Esther Matsuda Chiang. Despite interference by his rookie cop son, politics, racism, and an increasing number new cases, including the murder of a student held custody, Chuck doggedly follows the clues. Chiang soon learns that the murders are only part of a dangerous plot to takeover Matsuda International by Asian gangs and a trusted friend.