In the title compound, C(24)H(21)NO(4)S, the indole ring system makes dihedral angles of 77.8 (1) and 85.4 (1)°, respectively, with the S- and C-bound phenyl rings. The mol-ecular structure is stabilized by a weak intra-molecular C-H⋯O hydrogen bond. In the crystal, a weak inter-molecular C-H⋯O hydrogen bond and a C-H⋯π inter-action are also observed.