Scarlet Street movie plot

The cashier Christopher, who has worked diligently all his life , has only one hobby in his daily life, drawing, and he never dared to expect his talent to be recognized. Christopher married a widow only to save the rent money. The two quarreled on weekdays. Christopher had never enjoyed a woman's love in his life. By chance, he meets a beautiful young woman named Katie Katie thinks she's in love with her boyfriend Johnny, who just exploits and takes advantage of her. Under the instigation of Johnny, Katie began to try to defraud Christopher of money. Christopher thought the young woman was in love with him and would embezzle public funds to satisfy her. His boss has always trusted him on weekdays, believing that he has something to hide, and after finding out, he just fired him instead of handing him over to the police. Katie has always regarded Christopher as a great painter, and a suspicious Johnny sells Christopher's paintings, which are recognized as genius works by famous critics and galleries. Katie falsely claimed to be the author of the paintings and was made a big star. Instead of blaming her, Christopher was amazed at what happened. He asked Katie to marry him, only to be laughed at by the other party. In anger, Christopher killed Katie with an ice pick, and then Johnny, who arrived at the murder scene, was sent to the hanging chamber as the murderer. Christopher was left with nothing again, and he was condemned by his conscience and became a homeless man. He told people that he killed the couple, but no one believed him, only that he was delusional. Christopher would hear the accusations and ridicules of grievances ringing in his ears whenever a person walked alone down the street.