Sinopsis: Kakuto charts the course of its clutch of clueless slackers through the three days leading up to and including the 21st birthday of student Ryo. Nerdish Naoshi, a childhood friend of Ryo's has just got his girlfriend pregnant. A one-off TV appearance when he was five has stirred unrealistic expectations of an acting career in him, but it's a far cry from the reality, toiling in his father's garage. Meanwhile Makoto, a university buddy, has just been dumped without warning by his girlfriend, Kyoko. The three are in definite need of something to lift their spirits, and so set off to meet an acquaintance of Ryo's, Suzuki connected with the yakuza to score some dope for the evening. Somewhere along the line, Ryo gets spiked with LSD and the drugs, stashed away in an empty Lucky Strike packet, are misplaced. Meanwhile, an ineffectual cop, first seen being given a dressing down by the prepubescent teenager he attempts to avert from buying cigarettes from a vending machine is keeping a beady eye on the apartment of Tezuka, the scrawny fresh-out-jail yakuza they just scored from. If this wasn't enough, a confused young tearaway associate of theirs, the kleptomaniac Shinji's just-for-kicks "eat and run" shenanigans in the local cafés have escalated into joy-riding in unlocked cars.