Politics ruined this film

Rating: 5/10 (1 January 2020)

As many other have stated, the politics were totally unnecessary and ruined the arc of the film. Spoilers ahead.
I thought it was going to be clever for Marta to have been the killer all along, and the black sheep of the family saw through her facade the whole time while his aunts/uncles accepted her into the family. This was the reason for the fight with Harlon, knowing marta's intentions to try and swindle the family fortune. This was why he sent the money to have Daniel Craig investigate. Pretty clever! Or at least I thought so until they showed otherwise. It turns out it's as formulaic as, hey, the kid no one likes in the family, that has never worked and is the biggest freeloader of all, turns out to be a vendictful murderer because he isn't getting any part of the will. Furthermore, as stated, the wealthy good for nothing white family gets misplaced by the migrant as she peers from "her" balcony beckoning them to leave her palacial estate. Oohhhhh how the tides have turned.
Now... For a few other gripes since I'm a Nurse Anesthetist and give these drugs for a living. You'd never give 100mg of toradol (ketorlac) to anyone, especially not an 85 year old person due to its effect on kidney function. Stupid but I get it. 2nd, there are no 100mg vials of morphine because that is in fact a toxic dose. At most it'd be 10mg. Furthermore, even if you got 100mg of morphine, you wouldn't die, you'd just stop breathing (problematic but not death inducing). You can see Marta giving the other blackmailed mouth to mouth and then CPR so she knows how to do it. She could have just breathed for him while awaiting for paramedics. Not ideal, but certainly not a death sentence. It did nail that drugs are labeled similarly and mistakes do happen though.
In the end, the tone is firmly cemented that white people are bad and don't deserve what they have. That's the message, loud and clear.