IFC Midnight has released a new trailer for The Human Centipede 3 (Final Sequence), and it’s predictably unsettling. Director Tom Six returns to complete his franchise with a prison-set story that finds Dieter Laser from the first film and Laurence R. Harvey from the sequel banding together to create a 500-person centipede out of prison inmates.

As you can see in the trailer, the film takes place in a world in which Six’s first two Human Centipede movies also exist. The characters get the idea to create the prison centipede from watching those films, so I guess this third installment will be fairly self-referential. I’ve never seen a Human Centipede movie and I don’t necessarily plan to, but I guess if Six is still making these movies, there’s gotta be people still watching them.

Catch the new Human Centipede 3 trailer below via IFC Midnight. The film also stars Eric Roberts and Bree Olson. The Human Centipede (Final Sequence) will be released in theaters and VOD on May 22nd.

Here’s the official synopsis for Human Centipede 3:

Bully prison warden Bill Boss (The Human Centipede Part I's Dieter Laser) has a lot of problems; prison riots, medical costs, staff turnover, 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 completely insane. Under threats of termination by the Governor, his loyal right hand man Dwight (The Human Centipede Part II's Laurence R Harvey) comes up with a brilliant idea. 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.