Gallbladder carcinoma is an aggressively malignant disease carrying an extremely poor prognosis. Undifferentiated spindle cell carcinoma, the rarest of all gallbladder cancers also has the same prognosis. Patients usually have no specific or vague presenting symptoms, thus, in such scenario presentation with late-stage disease is often common. We herein have reported a case of 63-year-old male who presented with short history of abdominal pain and fever. Our case was different as his radiologic investigations were suggestive of cholecystitis with cholelithiasis for which cholecystectomy was done but it was later diagnosed to be a case of SpCC.