Human Centipede 3: Final Sequence
The hellhole known as George H.W. Bush State Prison is run by maniacal Bill Boss who hates the inmates, and they hate him. In order to keep the prisoners in line, and to save the cost of mass castration, the warden turns to the "ultimate correction" of centipede surgery and the inmate population is sown together.
Dieter Laser, Laurence R. Harvey, Eric Roberts, Robert LaSardo, Tommy Lister Jr., Jay Tavare, Clayton Rohner, Bree Olson, Akihiro Kitamura, Bill Hutchens, Hamzah Saman, Peter Blankenstein, Carlos Ramirez, Daniel Perkins, Tom Six