Please help me write a short summary of the plot of "The Great Gatsby" by F. Scott Fitzgerald.
"The Great Gatsby" follows the story of Jay Gatsby, a young and wealthy man living in the "roaring twenties" of America. He falls in love with a married woman, Daisy, and uses his riches to create a life that he believes will win her heart. Their relationship is complicated by Daisy's husband, Tom, and Gatsby's mysterious past. As tensions rise and secrets are revealed, the story explores themes of love, wealth, and the decline of the American dream.