"The Last of Mrs. Cheyney" is a play written by Fredric M. Frank that premiered in 1925. The story revolves around Mrs. Cheyney, a charming and witty socialite who navigates the upper-class society of London. She is known for her ability to charm wealthy individuals, often leading to humorous and dramatic situations. The plot unfolds as Mrs. Cheyney attends a gathering of affluent friends, where her past and intentions come into question. The play explores themes of deception, social status, and the complexities of human relationships, ultimately revealing the lengths to which people will go to maintain their social standing.