Penetration Angst is a 2003 UK horror film

Horror film

Horror films seek to elicit a negative emotional reaction from viewers by playing on the audience's most primal fears. They often feature scenes that startle the viewer through the means of macabre and the supernatural, thus frequently overlapping with the fantasy and science fiction genres...

, written, produced and directed by Wolfgang Büld and starring Fiona Horsey. The film was later released in the United States, on DVD, as Angst.

Plot summary

A shy and sexually frustrated young woman named Helen has trouble when her private parts

Vulva

The vulva consists of the external genital organs of the female mammal. This article deals with the vulva of the human being, although the structures are similar for other mammals....

 begin to devour her lovers

Vagina dentata

Vagina dentata is Latin for toothed vagina. Various cultures have folk tales about women with toothed vaginas, frequently told as cautionary tales warning of the dangers of sex with strange women and to discourage the act of rape....

. Driven to madness by her condition, Helen decides to become a prostitute and murder her clients to satisfy her bloodlust.
It was filmed on the Isle of Wight.

Cast

Paul Conway	Dennis
Fiona Horsey	Helen
Philip Hayden	Jack (credited as Phil Hayden)
Jonnie Hurn	Stepfather
James Crichton	Gynaecologist
Fiona Smith	Little Helen
Nicolas Hall	Young Man
Dirk Kühsel	Punter
Joanna Ogden	Portia
Beth Steel	Sonia
Amy Steel	Silvia
Drew Edwards	Mark
Anna Leigh-Rose	Jacey
Cheryl Goodman	Barmaid
Lee Sullivan	Man in Pub

Producer Nick Coe has a cameo as a man in the theater during the date between Dennis and the twins.