(Corrected errors and rephrased some expressions even though they'are not necessarily wrong)

The Plot of The Picture of Dorian Gray 

The Picture of Dorian Grey is the only novel by Oscar Wilde. Basil Hallward is a young artist fascinated by the beauty of Dorian Grey, a young man whose portrait he decides to paint. Dorian, watching his image in the picture, recognizes his own beauty and realizes that time will destroy it [make him ugly], while the portrait will stay forever young. Under the influence of the aesthete Henry Wotton, he develops a wish that the reverse was true. He also says that he will kill himself when his youth fades. Alarmed by Dorian's reaction, Basil tries to destroy the work, but Dorian stops him. In the ensuing months, Dorian becomes friends with Wotton and starts frequenting the theatre, where he meets a young and promising actress, Sybil Vane. She falls in love with him, but he rejects her saying that he only loves her onstage. At home, Dorian observes that this cruel behaviour warped the portrait's expression. Shocked, he returns to Sybil and discovers that she has just killed herself. Thereafter, he starts to act corruptly [wantonly], while he stays young and his portrait changes monstrously. In the end, he tries to redeem his sinful soul by destroying the picture, and ends up killing himself.