Horror and rampage look to hit children’s television in the new trailer for Buddy, a horror thriller from director Casper Kelly. Starring in the Roadside Attractions film are Cristin Milioti, Keegan-Michael Key, Topher Grace, Delaney Quinn, Patton Oswalt, and Michael Shannon.

Per the official synopsis: “Remember Buddy — the bright orange unicorn and star of that classic childrens’ television show who brought joy and life lessons into your living room? Inside the colorful world of “It’s Buddy!”, a group of children spend their days singing, dancing, and helping Buddy spread happiness. But when one child refuses to play along, Buddy is not pleased, and cracks begin to appear in this seemingly perfect world.”

Kelly, known for creating Adult Swim’s viral 2014 horror short Too Many Cooks, directs Buddy from a script he co-wrote with Jamie King. Tyler Davidson, Drew Sykes, Raphael Margules, J.D. Lifshitz, and Tracy Rosenblum serve as producers. On executive producing duties are Kelly, King, Kevin Flanigan, Dexter Braff, Roberto Linck, Nathan McAuley, Emilio Schenker, Gideon Tadmor, Adam J. Wilde, Geoff Yaw and Ryan J. Kelly.

Buddy premiered at the Sundance Film Festival earlier this year and will be released in U.S. cinemas on August 28th. The feature does not yet have a confirmed U.K. release.

Watch the Buddy trailer below: