Unrelievedly grim, this searing second feature by TV actress Karen Moncrieff (Blue Car) guides an unusually able cast through a five-part feature that’s closer to a collection of interconnected short stories than to a novel. The episodes all revolve around the brutal murder of a young woman, and Moncrieff’s psychological and sociological perspective on the characters–and on the sickness and unhappiness that seem to bind them together–is almost always acute and never merely sensational. With Toni Collette, Rose Byrne, Mary Beth Hurt, Marcia Gay Harden, Brittany Murphy, Kerry Washington, Giovanni Ribisi, Piper Laurie, Mary Steenburgen, and Josh Brolin. R, 93 min. (JR)