“The Strangers: Chapter Three” (**1/2 out of four) was a sufficiently creepy sequel about the continuing misadventures of Maya (Madelaine Petch) who comes face-to-face with the masked killers and finds that the only way to truly escape them is to become one of them. Director Renny Harlin tells his story with a lushly gloomy sense of doom but after a while its plodding pace starts to wear you down. Worth watching for series completists and makes eerie use of Moody Blues’ “Knights In One Satin” in one key scene.