One Direction fans are portrayed as obsessive followers of the band who are willing to kill themselves or others in a new documentary that will air on United Kingdom television Tuesday.

Crazy About One Direction will be screened by Channel 9's digital channel Go at 7.30 p.m., according to News.com.au. The channel is part of the touring company bringing 1D to Australia as part of their world tour.

In the film one British fan reportedly threats to attack anyone who posts tweets against the band, saying, "I'm part of a fandom that can kill you if they wanted."

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Another fan wants the band to notice him so desperately that he tweeted band member Harry Styles "Why won't you follow me? Should I kill myself."

Sandra, 14, discussed how angry she felt when Styles was dating I Knew You Were Trouble singer Taylor Swift.

"When Harry was with Taylor I was giving her death threats and she blocked me off Twitter," she says in the documentary. "That's how bad it was. If I saw her now I'd rugby tackle her. I'm stamp on her. I'd rip all her hair out, I'd squeeze her eyeballs and step on them."

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She also discussed her obsession was the 19-year-old singer: "I really want him to be my husband. I just wanna spend my life with him. I'm 14 unfortunately and Harry is 19. He'd get put in jail. I'd join him in jail, I'd go in jail just to be with him to be honest."

Many fans featured in the documentary want the United Kingdom singers to know they "exist" and offer to harm themselves and others to meet the band.

"If they said chop off an arm, I would," one said, according to the report, while another added, "I wouldn't kill a puppy but I'd probably kill a cat" if she could meet 1D.

There is also footage of fans online threatening to pour bleach down the throats of Swift fans who started a "Kill Harry Styles" blog.

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Becky, 19, said, "Some fans want them to be gay then they can't have a girlfriend, they'd have a boyfriend instead and they wouldn't be as jealous if they had boyfriends."

Natasha, 17, got braces because Niall Horan did - "I didn't really need braces" -- and also convinced herself to help her mother with the housework by saying in her head, "I'm going to marry Zayn, I'm going to have a maid, I don't need to do all that."

One Direction's Australian tour ends in Melbourne on Oct. 30.

Crazy About One Direction reportedly angered the band when it first aired in the UK in August, with 1D member Liam Payne tweeting it was "dramatized" and "full of s---."

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