The plot is a chaos of underdeveloped relationships and frayed loose ends, but every so often, Mann does something so right that it makes this seem less a matter of narrative disorganization than a commentary on the anarchy intrinsic to any investigation.
Basically "csi: East Texas,'' the debut feature of Ami Canaan Mann is long on style and short on coherent storytelling, not unlike numerous efforts by her director dad, Michael, who serves as a producer here.
Texas Killing Fields begins along the lines of a police procedural and might have been perfectly absorbing if it had played by the rules: strict logic, attention to detail, reference to technical police work. Unfortunately, the movie often seems to stray from such discipline.
As good as Worthington, Chastain, Moretz and Morgan can be as they try to untangle the morass and the menace - and get caught up in it - they just can't quite pull it off. The real killer, sadly, is the script.
Script by former DEA officer Don Ferrarone isn't that bad in itself, but matters aren't helped by the mumbled performances and poor sound, which make it hard to hear what anyone's saying, while sloppy editing wreaks havoc on the story.