Doctor Who - The Masque Of Mandragora

"The Masque of Mandragora is the first serial of the 14th season of the British science fiction television series Doctor Who, which was first broadcast in four weekly parts on BBC1 from 4 to 25 September 1976.The serial is set in the fictional European duchy of San Martino in the late 15th century. In the serial, the astrologer Hieronymous (Norman Jones) seeks to summon the power of an intelligence called the Mandragora Helix to rule the Earth."
Starring Tome Baker as the 4th Doctor.