We finally got a peek at some actual footage from Guillermo del Toro’s upcoming FX horror series The Strain a week ago, and now we have the first extended trailer. Believe it or not, it gets creepier.

The series, which starts with an investigation into a strange viral outbreak on an airplane and eventually evolves into a full-on war for humanity with an ancient vampiric race, definitely earns its delToro freaky points quickly and in spades.

Seriously, this thing looks like a super-dark take on Fringe, but with vampires, brutal murder and a nice viral-outbreak angle. The extended trailer sets the tone, and this could definitely be a must-watch sci-fi thriller this summer. If nothing else, it looks scary as hell.

The Strain premieres July 13.

(Via io9)