Cher menteur is the French-language edition of Jerome Kilty’s celebrated play Dear Liar, which dramatizes the lively correspondence between playwright George Bernard Shaw and the actress Mrs. Patrick Campbell. First published in paperback on June 13, 1997 by L’Arche, the edition runs sixty‑nine pages and presents the exchange as a staged dialogue, capturing the wit, affection, and occasional tension that characterized their real‑life relationship. The play offers insight into Shaw’s theatrical world and Campbell’s stage career, making it of interest to scholars of modern drama, Shaw enthusiasts, and readers of Francophone theatre. By rendering the original English text into French, this version allows a broader audience to appreciate the intellectual spark and emotional nuance of the exchange, preserving the work’s enduring appeal as both a literary artifact and a performable piece.