Way Better than 4.3
This movie is a sort of remake of la piscine. The title is French for the Pool. La piscine is a classic. Blood in the water isn't half bad.
In la piscine there is no outside criminal activity. It's a story of the woman and her new boyfriend staying in a friend's vacation house. The old boyfriend shows up with a fancy car and things get jealous between the two guys.
One difference is the old boyfriend arrives with his newly discovered daughter who is just 18 and for the moment a virgin.
There is a lot of divergence between the two movies but the final result is similar. Blood in the water does a good job of evoking the mood of the French movie. I guess you guys are not fans of that famous noir mood.