Methadonia is a (excuse the pun) dip into the lives of several people trying to get over Methadone, which can be as addicting, sometimes even more so, then Heroin. They all go to a drop in for Meth addicts to get help trying to overcome Methadone. Apparently, it's damn hard to get off the stuff, and what's more shocking, the 'Methadone industry' will try damn hard to make sure you're addicted.
I liked this film, all the characters in this were highly interesting, some were slightly crazy (like the gal who was having her 3rd kid, her first kids taken away from her). I mean, all in all I was rooting for some of these people, and some I was saying "Oh Dear".