Set in rural Louisiana in 1983-84, this is the story of two brothers - one, a youthful policeman (played by Brenton Thwaites - Titans, Gods of Egypt, Maleficent, An Interview with God, et al.); the other, a sometime mechanic and general trouble maker (played by Ben Robson - The Boy, Vikings). Their next door neighbors from whom they rent a trailer consist of Claire Holt (The Vampire Diaries, The Originals), her younger sister played by Alycia Debnam-Carey (The 100, Into the Storm), and their very sick father played by Gerald McRaney. BR is involved with CH (who has a young son), but is cheating on her with Francesca Eastwood (True Crime, Outlaws and Angels). One night, CH has had enough and drives away from a nearby tavern in a partially drunken state after witnessing the latest shenanigans of BR. The next thing we know, the two of them are together in the front seat of her car and CH is wildly brandishing a gun which she stole from somebody. BR finally gets the gun away from her, but he too is waving it around. Suddenly the car hits a pot hole and the gun goes off killing CH. In desperation, BR calls his brother BT in the wee hours of the morning for help. BT now has to make a critical decision. Does he help his brother by disposing of the body and effecting a cover up? Or, does he haul his brother off to jail? This would be BR's third strike and the end of any freedom. What is BT to do? He still loves his misbegotten brother, yet also has strong feelings for CH's sister.
BT chooses to help his brother and hide the truth. Some stranger must have shot CH. The Chief of Police, brilliantly played by veteran actor Ted Levine (Monk, The Silence of the Lambs), is skeptical of the shooting's scenario and is determined to find out what really happened. Unfortunately, any progress in his investigation always seems to lead to a dead end. Meanwhile, time goes by and BR is constantly feeling guilt ridden. He suddenly can't take any more and thinks of confessing everything even though that would now also implicate his brother. Moreover, in the meantime, BT has married CH's sister whose mutual feelings were finally and fully expressed. What to do? What to do? Plenty of excitement and action follows, all of which builds to a dramatic and complicated conclusion (NO SPOILERS HERE!).
I will only say: "However, she does leave the door wide open."
A final note of interest. Most of the key roles are played by Australian and British actors, all exceedingly capable of effecting an appropriate southern accent.