For legal streaming:Crunchyroll - Parasyte -the maxim- Full episodes streaming online for freePlot Summary:Shinichi Izumi is a normal high school boy whose right hand has become infected with an alien parasite that names itself "Migi" ("right"). Migi is the first parasite to develop a symbiotic relationship with its host, as he and Shinichi slowly develop a grudging friendship. Migi isn't the only Parasite on earth, however, and as cases of Parasites killing humans begin to emerge, humans seek to kill off Parasites. Shinichi and Migi find themselves caught in between these two sides of the struggle over planet earth.-from ANN-
This week's episode should be available to free users by this upcoming Wednesday. Seriously though, any seinen fan who hasn't seen the first episode really owes it to themselves to check it out ASAP. It got one of the most solid premieres this season for sure so far. And an awesome OP to top it off as well: