Dengue fever is a mosquito-borne viral infection common in tropical countries with increasing incidence. The clinical manifestations can range from asymptomatic or mild infection to multiorgan failure. The latter is also called "Expanded dengue syndrome," and it carries a high rate of mortality and morbidity. Intensive care management of such complicated cases is a challenging task for the treating physician, which requires intense monitoring and a multidisciplinary approach for decision making. We report an atypical case of an expanded dengue syndrome presented with subarachnoid haemorrhage associated with moderate thrombocytopenia, cranial diabetes insipidus, and haemophagocytic lymphohistiosis in a young healthy female patient.