AllMovie

The Son of Dr. Jekyll is Edward Jekyll, played by Louis Hayward. The film's events take place long after the unpleasantness involving Dr. J's doppelganger Mr. Hyde. Young Edward hopes to prove that his father was a dedicated scientist, and not merely a mad monster. His nemesis in this endeavor is Curtis Lanyon (Alexander Knox), executor for the Jekyll estate, who hopes to drive Edward into insanity and irrational behavior so he can keep the late doctor's legacy for himself. Much to the disappointment of the audience, Eddie Jekyll never turns into Hyde, no matter how hard he and Lanyon try to re-create the original doctor's experiments. Thus, Son of Dr. Jekyll can scarcely be designated a horror film; it looks more like a period-costume Charlie Chan picture.