The Trial of Mary Dugan is a play written by Bayard Veiller.
The 1927 melodrama concerns a sensational courtroom trial of a showgirl accused of killing her millionaire lover.
It was first presented on Broadway in 1927, with Ann Harding in the title role, and in London in 1928 with Genevieve Tobin.
Presented by Peter Saunders, it featured Betsy Blair, David Knight, Cec Linder and Patricia Burke.
Ayn Rand’s Night of January 16th is reported to have been modeled on this play.