In the title mol-ecule, C16H15NO, the tetra-hydro-pyridine ring is in a sofa conformation with the methine C atom forming the flap. The dihedral angle between the benzene rings is 80.85 (8)°. In the crystal, mol-ecules are arranged in alternating double layers parallel to (100) and are connected along [001] by N-H⋯O hydrogen bonds. In addition, weak C-H⋯π inter-actions are observed.