In 1964, Singapore is an island on edge. Political dissidents set off bombs in the streets, while locals and foreigners uneasily coexist. Sam Callaghan bridges these worlds. An Australian expat and former army officer, Sam spent his childhood in a Singaporean prison camp. When Patricia Cheng seeks his help to keep her detective agency afloat following her husband's murder, Sam quickly becomes the man to call to get a job done.