“Hero Of The Underworld” (** out of four) was a muddled character study/melodrama about a drug-addicted night manager (Tom Malloy) of an upscale L.A. hotel who meets a young prostitute (Nicole Arianna Fox) who is beaten up badly and he attempts to find her and rescue her and bring her- and himself- out of the abyss. Grim storyline has a strong central performance from Malloy but fails to connect emotionally and never shifts into high gear. It’s also hard to understand exactly why he becomes so obsessed with Fox and saving her and this limits the story’s impact.