In the title compound, C21H19BrN2O2 center dot C2H6OS, the indole ring system is essentially planar, with a maximum deviation of 0.050 (3) angstrom for the non-bridgehead C atom adjacent to the N atom. The two cyclohex-2-enone rings adopt half-chair conformations. An intramolecular C-H center dot center dot center dot O hydrogen bond occurs. The solvent molecule exhibits minor disorder of the S atom [site occupancies = 0.8153 (16) and 0.1847 (18)]. In the crystal, molecules are linked by N-H center dot center dot center dot O hydrogen bonds, forming layers parallel to the bc plane.