Requiem for a Dream

During the summer in Brighton Beach, Brooklyn, widow Sara Goldfarb spends her time watching electrifying infomercials. Meanwhile, her son Harry occasionally pawns her cherished television to fund the recreational drug use of his best friend Tyrone and his loving girlfriend Marion.

After Sara receives a call that she has won a spot on a television game show, she becomes excited about attending it in her fancy red dress she used to wear with her husband. However, she is very disappointed to learn that she no longer fits into it. After failing a strict diet, an unscrupulous physician prescribes her a regimen of weight-loss amphetamines. She begins losing weight, while becoming manic. Read more on Wikipedia.