Silly but spirited comedy (released in Japan in 1996 and arriving in the US a full four years later) about an unemployed loser whose hopes to rob a bank go awry when he bumps into an angry convenience store clerk, who takes his gun and chases him on foot around Tokyo. When the two bump into a guilt-laden yakuza (who coincidentally is both the clerk's drug dealer and the unemployed loser's gun dealer!), suddenly it's a three-man chase throughout the streets of Tokyo.
As the three runners keep the pace throughout the day and into the night, vengeful gangsters and gun-crazy cops join the fray, and various flashbacks and fantasy sequences revealing these men's motivations underscore the film's real intention: to lampoon the macho posturing of the modern Japanese male. While that's plenty amusing, Sabu's style is too amateurish to carry much weight. His point is a valid one, but it's made clear early enough, and after that he has nothing more to add, even though his film keeps going.
Still, if the idea of watching three Japanese guys run for hours around Tokyo sounds goofy enough to be enjoyable, you will enjoy it. And thankfully, at 80 minutes, Non-Stop sprints to a fairly satisfying finish before wearing out its welcome.