In the title compound, C(12)H(13)Cl(2)NS(2), the thia-zinane ring adopts a half-boat conformation. An intra-molecular C-H⋯S hydrogen bond is observed. In the crystal structure, centrosymmetrically related mol-ecules inter-act through an aromatic π-π stacking inter-actions, with a centroid-centroid separation of 3.790 (2) Å.