The Last Witness

The Last Witness is a 1925 British silent crime film directed by Fred Paul and starring Paul, Isobel Elsom and Stella Arbenina. The screenplay concerns a barrister who prosecutes his own wife, who has recently had an affair with a Member of Parliament, for murder. It was based on a novel by F. Britten Austin.

Synopsis from Wikipedia, CC BY-SA 4.0. Everything below written here.