Robert Ross wrote Medicinal Purposes, which introduced us to the character of Knox, played admirably by Leslie Phillips. Realising what a succesful creation he is, Ross has brought him back for another adventure with the Doctor. Although there are other good performances in this play, it's really with Phillips that the story comes to life.
Colin Baker's Doctor and Maggie Stables's Evelyn work so well together that it is a joy to hear them and Phillips together again. The sixth Doctor has always sounded theatrical and important, so putting him in a theatre at the time of the assassination of Abraham Lincoln is a very fitting location for him. Evelyn Smythe, his companion, is a history professor and therefore knows enough about how things should turn out to be able to give the listener an informed view of events. But she also has a heart, and like many a companion, is tempted to put her compassion before her loyalty to 'history'. This cliche aside, it's a well written script, and we can forgive Ross for revisiting the territory of "Who Killed Kennedy", as the dialogue and central ideas are so good.
An enjoyable listen, primarily for the three lead performances, but also for the impressively researched script.