IM Global has released two pieces of concept art and the official synopsis for The Happytime Murders, which doesn't have a release date yet. This comedy is set in a world where both humans and puppets live together, when a series of murders shakes up the puppet community. Katherine Heigl is set to star, although we have no details regarding her character. Take a look at these concept art illustrations along with the official synopsis.

Happytime Murders Phoo #1
Happytime Murders Photo #2
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In a world where puppets co-exist with humans as second class citizens, puppet private eye and disgraced ex-cop, Phil Phillips, is hot on the trail of the serial killer who murdered his brother and is now targeting the cast members of the famous 80s television show, "The Happytime Gang." As the killings continue, Phil's former flame, Jenny, is next on the list. It's up to Phil and his ex-partner, Detective Edwards, to find the culprit, but as bad blood and old resentments resurface the clues start pointing to the only viable suspect, Phil himself. Now he's on the run with only his wits and hard headed determination, as he tries to solve, The Happytime Murders.