Eddie

Neo Tokyo in the year 2XXX AD. Eleven people, all with criminal backgrounds and different talents, awake in a deserted warehouse. They have been brought here by The Baron. They are forced to play a game with a reward of 300 million yen and a chance to start a new life. Only one will survive the race to the Barons [sic] mansion and end up with the reward. (DVD Cover)

There's one cure for heroin addiction. But is it a cure? Methadonia is the borderland between high and straight, where recovering heroin addicts on methadone "maintenance" exist. (imdb)