Doctor Who: City of Death, Episode 2 (1979)

In the second episode of the four-part story "City of Death," the Doctor (Tom Baker) and Romana (Lalla Ward) team with private eye Duggan (Tom Chadbon) to find out why Count Scarlioni (Julian Glover), who has everything a man could want in life, is so determined to steal DaVinci's Mona Lisa from the Louvre. Besides, the Count already possesses six other Mona Lisas -- all of them originals. Catherine Schell co-stars as Countess Scarlioni. First telecast October 6, 1979, "City of Death, Episode 2" was written by Douglas Adams and Graham Williams. ~ Hal Erickson, All Movie Guide