“Master Gardener” (** out of four) was a curiously muted and aloof melodrama about a master horticulturalist (Joel Edgerton) with a lengthy past of drugs and crime who now spends his days tending to the luxurious estate of his employer (Sigourney Weaver) but finds himself at a personal and emotional crossroads when he develops a sexual attraction to one of the other workers (Quintessa Swindell). Writer/director Paul Schrader once again shows his affection for loners and moral ambiguity but this muddled effort shows he’s not the “master” storyteller and filmmaker that he once was (“Taxi Driver”, “Light Sleeper”, etc.). Weaver is wasted in a thankless role and Edgerton is unusually stiff and blank in the lead.