Ever wonder what happens when the sun goes down on Sesame Street? After taking a look at these works by Isaac Bidwell, you won’t want anyone to tell you how to get there come nightfall. Elmo, Ernie, Big Bird, Snuffy and the other typically friendly muppets have gone mad in his series, where characters from the beloved children’s show are turned into not-so-beloved horror movie villains. We’d expect this from Oscar, but even you, Prairie Dawn (of the dead)?!