Pusher was Nicolas Winding Refn's contribution to the Eurocrime scene as it was regarded from the perspective of its filmmakers. He protested in interviews that he was really not that interested in the real life ducking and diving that was involved with actual drugs deals, and was merely using crime as a means to an end storywise, and in fact would get cagey when asked about how far his research into this criminal underworld went, but for what it was worth, he did concoct a strong atmosphere of lowlife desperation that could occur when the criminal existence went very wrong. This was his first feature, and it made quite an impact on all who saw it, with the usual comparisons.
Most film buffs identified a debt to Martin Scorsese's Mean Streets, though Refn said he was more into Ruggero Deodato's Cannibal Holocaust, which would explain the proliferation of handheld camerawork that almost casually captured the bursts of violence as Frank's existence starts to close in on him. Some said, with numbing predictability, that it was Quentin Tarantino he was emulating, yet while it was accurate to observe some of the aimless dialogue exchanges appeared to owe something to him, especially in the profanity and casual racism, they were by no means the main focus as this was more centred on creating a selection of dialogues that reflected the way Copenhagen crims spoke.
The plot was almost childishly simple, and one we had seen before and doubtless will see again - going back to Anthony Newley in The Small World of Sammy Lee and beyond, and forward to the Safdie Brothers' Uncut Gems and probably further, as it was a premise filmmakers liked to return to over and over. Yes, Frank owes money to his Serbian drug baron Milo (Zlatko Buric), and the more he delays paying up, the more the debt spirals out of control, in a "never a debtor nor a lender be" lesson for anybody watching. OK, that probably was not foremost on the director's mind, but it did act as a warning for anyone who needs extra cash to go about it through proper channels, since the alternative we witnessed here was nothing less than a living nightmare for the protagonist.