Credit: Evan Agostini/Invision/AP

The Jim Henson Company is teaming up with STX Entertainment on an untitled project featuring both humans and puppets, EW has confirmed. The film is being described as a raucous comedy that could get an R rating.

The story, set in a world where puppets and humans live side-by-side, centers on the puppet stars of an iconic TV show called The Happytime Gang, who are some of the biggest celebrities around. Off-camera, though, the family-friendly cast leads the kinds of lives that would make a tabloid writer blush. When the stars of the show begin to be mysteriously murdered, two mismatched detectives — one a type-A, take-no-prisoners human with a secret, and the other a crass, hard-drinking puppet with a connection to one of the victims — must put aside their differences to stop the killings and catch the culprit.

Director Brian Henson told Deadline, which was first to report the news Wednesday, that the movie will “take puppets to a place where we have never gone before on the big screen.”

“This is as unique a screenplay as we have seen in a long time, with relatable characters and a fantastic story,” added Adam Fogelson, chairman of STX Entertainment Motion Picture Group. “This project is a daring and original R-rated comedy with a distinctive voice that is completely unconventional and fun.”

According to Variety, production could start before the end of the year, depending on cast availability.