The asymmetric unit of the title compound, C20H14Cl3NO, consists of two independent mol­ecules. In one mol­ecule, the chlorinated benzene ring forms dihedral angles of 12.00 (9) and 77.04 (9)° with the phenyl rings. The dihedral angle between the phenyl rings is 80.37 (10)°. The corresponding dihedral angles for the other mol­ecule are 26.34 (10), 62.98 (10) and 88.47 (11)°, respectively. One of the mol­ecules features an intra­molecular C—H⋯O hydrogen bond, which forms an S(6) ring motif. In the crystal, mol­ecules are linked by N—H⋯O hydrogen bonds into [100] chains. The chains are further linked by C—H⋯O and C—H⋯Cl hydrogen bonds into a three-dimensional network.