Concerto: Avengers (TV Episode)

Plot

Nigel Stock guest stars as a Soviet pianist who has been implicated in an unsavory murder case. In order to save his reputation -- and his life -- the pianist must kill a visiting dignitary. Normally, Steed would be racing to the pianist's rescue; this time, however, he finds himself an unwilling accomplice to the upcoming assassination. Written by Terrance Dicks and Malcolm Hulke, "Concerto" originally aired in England on March 7, 1964; it remained unseen in America until April 4, 1991. ~ Hal Erickson, Rovi