This is the complete BBC Special TV enactment of the Shakespeare's Macbeth Directed by Jack Gold (1983). The film stars Nicol Williamson as Macbeth, Jane Lapotaire as Lady Macbeth, and Mark Dignam as Duncan.
Macbeth and his wife murder Duncan in order to gain his crown, but the bloodbath doesn't stop there, and things supernatural combine to bring the Macbeths down.