Inspired by true events, Code of Law S4 explores more hard-hitting and headline cases of brutal or heinous crimes series that shocked Singapore. The season will pack in captivating new characters and plot twists, including a "Nice Singaporean Boy", Derek Ho played by Desmond Tan. Derek Ho leads a double life. A suave and charming high-flying banker by day and by night, a murderer with an abnormal psychological gratification for killing. Can the LAW keep up with this "Nice Singaporean Boy"?