My friend Michael Valenti wrote a musical version of Anouilh's dark comedy Mlle Colombe, which Julie Harris and Eli Wallach (I believe) performed on Broadway. It's about a naïve young man going into military service who leaves his pretty young wife, Colombe, in the carer of his mother, a huge Parisian stage star in fin du siècle Paris, and how Colombe is corrupted by many affairs, including one with her brother-in-law before she ends up a stage star, too.
Tammy Grimes played the mother in Valenti's production, and that is how I met Tammy Grimes.