Some friends involved in minor crime (street-corner sales of dodgy goods, that kind of thing) in London suddenly find themselves owing a lot of money to a dangerous mobster, so they decide to go for a one-time big score by ripping off some bigger crooks. As you’d expect, this doesn’t work out so well, and then it gets worse, and then it gets even worse and worse and worse.
It’s a very dark but clever ultra-low-budget comedy with over-the-top violence, tons of interesting characters, and a constant stream of obscene Cockney-accented language. Definitely not for everybody, but I quite liked it. So would the students of St. Trinian’s, come to think of it.
Incidentally, the writer/director, Guy Ritchie, later went on to direct a number of much bigger-b budget films, including the two Sherlock Holmes films starring Robert Downey Jr (the first of which was quite good) and the upcoming Man from UNCLE. He was also married to Madonna for most of the last decade, which must have taken a fair amount of energy.