The Human Centipede II (Full Sequence) has been rejected by the British Board of Film Classification because it is “sexually violent and potentially obscene”.
The relatively rare decision has been made because the second film features “unacceptable material” throughout.
This means the DVD won't be able to be supplied legally anywhere in the UK.
Last year, The Human Centipede (First Sequence) was released, uncut, as an 18, and featured three subjects sewn together end-to-end by an insane doctor.
A report by the BBFC draws focus to two scenes, one of which features sandpaper, another of which features barbed wire, both in places of extreme discomfort.
"The first film dealt with a mad doctor who sews together three kidnapped people in order to produce the ‘human centipede’of the title," says the report, by BBFC director David Cooke.
"Although the concept of the film was undoubtedly tasteless and disgusting, it was a relatively traditional and conventional horror film and the Board concluded that it was not in breach of our Guidelines at ‘18’.
"This new work, The Human Centipede II (Full Sequence) , tells the story of a man who becomes sexually obsessed with a DVD recording of the first film and who imagines putting the ‘centipede’ idea into practice."
The report goes on to say the sequel focuses on: “the sexual arousal of the central character at both the idea and the spectacle of the total degradation, humiliation, mutilation, torture and murder of his naked victims".
"The explicit presentation of the central character’s obsessive sexually violent fantasies is in breach of Classification Guidelines and poses a real, as opposed to a fanciful, risk that harm is likely to be caused to potential viewers."
Cook justified the ban by saying: "“It is the Board's carefully considered view that to issue a certificate to this work, even if confined to adults, would be inconsistent with the Board's Guidelines, would risk potential harm within the terms of the VRA, and would be unacceptable to the public."
Read the full report at the BBFC here - but beware it CONTAINS MASSIVE SPOILERS.