“Red Stone” (*1/2 out of four) was an enervatingly bland melodrama about a morally conflicted hitman (Neal McDonough) who is tasked with hunting down a young teenager who witnessed a murder before the F.B.I. or rival hitmen find him first but soon finds that his conscience comes into play and he has to decide whether to follow his professional or personal instincts. Intriguing storyline never connects emotionally and winds up muddled and aloof. McDonough tries but is simply not given enough to work with to play such a morally complex character.