Idiopathic inflammatory myopathies (IIM) are a heterogeneous group of disorders characterized by proximal muscle weakness and inflammation of skeletal muscle, often associated with malignancies. The association of Idiopathic inflammatory myositis and malignancies has been reported rarely in Asian countries. We are reporting a rare case of polymyositis associated with non-secretory myeloma with hypercalcemia and renal failure. Patient presented with features of myositis and renal failure, the search for malignancy revealed non-secretory myeloma. Since the patient refused chemotherapy, he is managed symptomatically for hypercalcemia and renal failure.