A May 22 theatrical and VOD release date has been announced for writer and director Tom Six’s The Human Centipede: Final Sequence. The new sequel is set in a men’s prison and will feature a 500-person centipede… that’s a lot of man ass.

Franchise villains Dieter Laser (Dr. Heiter of Human Centipede: First Sequence) and Laurence R. Harvey (copycat killer Martin of Human Centipede: Full Sequence) return to the fold and are joined by B-movie stalwart Eric Roberts. How ex-porn star Bree Olson (pictured) fits in the mix remains to be seen.

EW scored the official synopsis:

Bully prison warden Bill Boss (Laser), leading a big state prison in the US of A, has a lot of problems; his prison statistically has the highest amount of prison riots, medical costs and staff turnover in the country. But foremost he is unable to get the respect he thinks he deserves from his inmates and the state Governor (Roberts).

He constantly fails in experimenting with different ideas for the ideal punishment to get the inmates in line, which drives him, together with the sizzling heat, completely insane. Under threats of termination by the Governor, his loyal right hand man Dwight (Harvey) comes up with a brilliant idea.

A revolutionary idea which could change the American prison system for good and save billions of dollars. An idea based on the notorious Human Centipede movies, that will literally and figuratively get the inmates on their knees, creating the ultimate punishment and deterrent for anyone considering a life of crime. Having nothing to lose, Bill and Dwight create a jaw-dropping 500-person prison centipede.