If you're reading this, you're probably well aware of what you're getting into with the trailer for Tom Six's "The Human Centipede 3 (Final Sequence)," so we'll dispense with all the warnings. However, just in case you aren't, IFC Midnight gleefully offers a few of its own for what it describes as "the final chapter of the most notorious franchise ever made."

As we learned earlier this week, finds a way to top the high levels of revulsion in the first two films by introducing a 500-person centipede, assembled from prison inmates. We should count ourselves lucky that this is only a trilogy.

Arriving May 22 in theaters and on demand, "The Human Centipede 3" stars returning franchise actors Dieter Laser and Laurence R. Harvey, joined by Eric Roberts.

Bully prison warden Bill Boss (Dieter 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 (Eric 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 (Laurence R 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.