Background: The concept, definition and understanding of sepsis may have undergone several changes in the past years, but its omniscient nature in modern day critical care medicine has made accurate diagnosis, early initiation of therapy and relatively accurate prognostication, imperative. In recent times, procalcitonin has been used to initiate, de-escalate and guide antibiotic therapy. However, the data on its ability to predict all cause mortality in patients with sepsis remains nebulous. There is adequate evidence to merit considering both sides of the story.