FX’s new show based on Guillermo Del Toro’s The Strain is hitting TVs in July, but today we’ve got what might be one of the creepier teasers that I’ve ever seen for an upcoming series.

The series is based off the books by Guillermo del Toro and Chuck Hogan which tell the story of a team of scientists who wage war against an ancient strain of virus that confers vampirism, along with those it infects.

The Strain stars:Corey Stoll, Maestro, Sean Astin, Kevin Durand, Natalie Brown, Jonathan Hyde, Richard Sammel, Robert Maillet, Jack Kesy, Ben Hyland, and Miguel Gomez.

Source: Collider