Lars von Trier's only work in musical theater, Dancer in the Dark is an assault against escapism in film. Dancer in the Dark is an agonizing and unrelenting narrative of cruelty, hardship, and human nature. The film stars Björk as a single immigrant mother working in a factory in rural America who begins to lose her eyesight due to degenerative disease. The film's narrative is punctuated with sequences of song and dance, which were filmed simultaneously using one hundred separate cameras.