Human Centipede 3 trailer: So this is what a 500-person centipede looks like (predictably horrible)

This is the final instalment, don't worry

Yesterday we brought you news that Human Centipede Part 3 (Final Sequence) would centre around 500 prisoners being surgically attached butt to mouth.

Today, Vulture has gotten hold of the first trailer for it, for anyone who wasn't grossed out enough by the plot synopsis.

It's here, and obviously it's NSFW:

In actual fact, it wasn't as bad as I thought it would be. The trailer for the first film is quite artful and disturbing, the second is downright sickening, but this one is pretty schlocky and almost campy.

If you recognise one of the actors in the trailer, that'll be Eric Roberts, who was in The Dark Knight (oh how the mighty have fallen).

Human Centipede 3 will arrive theatres and (mostly) VOD on 22 May.

In case you missed it, this is the aforementioned plot synopsis.

'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.'

@christophhooton