"Rip", apparently, refers to law enforcement confiscating money earned through criminal activities. Obviously, there is a strong moral risk associated with so-called "Rip" operations. What's to keep the cops who have snatched money from bad guys from skimming some of the proceeds for themselves? Cops are underpaid and, generally, have domestic expenses associated with divorce or child custody problems. Therefore, strong temptations exist for police officers to expropriate for their own use some amount of the ill-gotten funds that they have seized.
This is the background for Joe Carnahan's very entertaining police thriller The Rip starring Matt Damon and Ben Affleck as Miami-Dade cops severely tempted by 20 million dollars discovered in a "stash house." Affleck's "Sarge" is involved in a love affair with a fellow police officer. She gets shot, seemingly by corrupt cops, who are aware that she knows about a huge treasure at a cartel stash house in the suburb of Hialeah. Sarge's brother, a G-man, is investigating corruption among the Miami-Dade cops. (He and his brother have a contentious relationship which leads to a fist fight between them in the station house.) Matt Damon, confusingly called both LT and Dane, is broke -- he is on the verge of losing everything due to a bad and destructive divorce. Obviously, he's on the look-out for a score that will save him from financial ruin. The cops seem to be morally flexible. They sit around afterhours, watching their buddies drive recklessly doing doughnuts in the parking lot while all the officers chug down beers. Dane has a message that there's a Hialeah stash house with money available for the taking. With Sarge and an Asian cop called Mo who is a straight arrow, as well as two cocky female officers, the cops drive to the suburb and talk their way into the house where they think the money has been hidden. They have a sort of terrier named Wilbur who has been trained to sniff out filthy lucre. The neighborhood where the house is located is eerily empty. The only person within blocks seems to Desi, a Columbian immigrant, who says that she is house-sitting while probate lawyers work out title to the premises which belonged to her abuela. The house is full of junk and seems crumbling around Desi's ears. The cops search the house and discover more than 20 million dollars of cartel cash, bills piled up in dry wall plaster buckets. But there are other corrupt cops nosing around the neighborhood and the cartel, perhaps, is also engaged in surveillance of the strangely empty neighborhood. Dane and Sarge bicker about the money and seem baffled as to what to do -- will they steal it all or merely a part or will they turn it in to the boss (who might steal the money for himself). Meanwhile, an army of bad guys is converging on the house: gang-members and crooked police out to score themselves, Someone phones the cops guarding the money (and counting it) in the house telling them to vamoose or "in thirty minutes people will start to die." Sarge and Dane, are baffled -- they are sorely tempted to steal money but have trouble figuring out a plan. Desi, of course, the woman house-sitting, would have to be eliminated. And if the money is stolen, how are Sarge and Dane going to split up the dough, particularly since the two female cops will have to be bought off and something will have to be done with the straight-arrow Mo. There's another call saying that the cops need to leave right away or "in ten minutes, people will start to die." The time passes and bad guys attack with machine guns, blasting the house, more or less, to pieces. And so it goes.
I can't provide more of the very complex plot without revealing lots of details as to surprising twists and turns in the story. Suffice it to say that "things are not as they seem to be", an archetypal plot described in the excellent Ethan Hawke vehicle "The Low Down" a recent cable TV series. The Rip is not a serious movie but its very entertaining. I was reminded of Walter Hill's Trespass (1992) in which firemen happen on a treasure in a burning building in East St. Louis and are besieged in an old foundry and attacked by scores of bad guys. The aspects of the movie involving greed and characters conniving to steal the treasure for which everyone is contending are similar as is the pressure-cooker environment of the foundry ruins under attack. John Carpenter's second or third movie, Assault of Precinct 13 (1976) is also closely parallel to the action in The Rip -- the cops are cut off, trapped while menacing thugs tighten their strangle hold about the precinct house. The other picture which The Rip resembles is A Simple Plan (Sam Raimi, 1998) a variant on the primordial allegory about greed, Chaucer's "The Pardoner's Tale"; A Simple Plan involves a family man and small-town account who finds a treasure in a plane crashed in a wintry woods in rural Minnesota. Two-thirds of The Rip are frightening and suspenseful, mostly confined to the shabby old house full of garbage and the spooky empty neighborhood. The last third of the movie is less focused, involves two chases, and seems less dire and suspenseful -- there's a slackening of tension as the various conflicts and betrayals are worked out. This part of the film is not as good as the middle section of the picture, but still exceedingly clever and interesting. I'm tempted to say that "they don't make movies like this anymore" -- you will see that my comparisons and correlates are all more than 25 years old. This is a very well-designed and exciting suspense film that I recommend.