national public radio critic andrew wallenstein said he rarely enjoys watching shark footage, but found "mind of a demon" "absorbing" but "not quite for the reasons intended". he said he found the tensions between cousteau and his crew to be "far more compelling" than the shark footage, and said he did not learn anything about sharks. "i'm not even sure what cousteau's innovative approach actually yielded in terms of footage", wallenstein concluded. "there's nothing in "mind of a demon" that uncovers the secret world of sharks."