Blood Convoluted – that was the title should be! (Spoilers)

None of the plot made any sense.

1. Marty hires the P.I. to kill his estranged wife and her lover. I wonder who the police would suspect? Even Inspector Clouseau could figured that one out.
2.The P.I. doublecrosses Marty. He offers up fake photos as proof the job has been completed. The P.I. must be an expert and professional in photography to do this in the days before Photoshop. The P.I. shoots Marty with Abby’s gun and takes the $10,000.
3. Ray thinks Abby killed Marty. He cleans up all the blood. Good luck with that! There would be some blood still there. He then puts Marty in the back seat of his car getting blood stains everywhere. Eventually, Marty will be missed. Who are the cops going to checkout first?
4.Ray drives over a freshly plowed field and buries Marty in the middle of it. Wouldn’t the farmer notice this and the fresh grave?
5.The P.I. is home free with his $10,000. Why does he now try to kill Abby and Ray? He passed it up the first time around. He uses a high powered rifle in a populated area at night. I know it is Texas, but wouldn’t someone call the police? Then the P.I. invades the apartment to finish the job even though he doesn’t know if the police are on the way?