“Killer Design” (** out of four) was yet another predictable suspense thriller about a prospective interior designer (Sarah Armstrong) whose life is saved by a young woman (Chelsea Gibson) whom she subsequently hired as her assistant but she soon uncovers terrifying secrets about her and finds out she is a sociopath intent on invading and wrecking her life. Decent acting and filmmaking fail to put new paint on a well-worn and derivative storyline. Film remains watchable for the most part but falls apart in its silly climax. Time to “design” some new suspense and thriller stories by now.