I have recently watched this classic gothic era Doctor Who story in which The fourth Doctor (Tom Baker) and Sarah Jane Smith (Elizabeth Sladen) land on the desolate planet Karn. Sarah sees a valley filled with wrecked spacecraft and they encounter the headless body of the alien before spotting a mysterious castle where they seek shelter. However they are being observed by a member of the mysterious Sisterhood of Karn. The Sisterhood are led by Maren and are keepers of the Mystical Flame of Life which is unfortunately dying out and Without the Flame, there is no Elixir of Life. The secret of the Elixir is known only to the Sisterhood and the High Council of the Time Lords, with whom they shared the Elixir, however Maren fears that the Timelords have sent The Doctor to steal the remains of the Elixir of life.
At the castle The Doctor and Sarah meet the Scientist named Mehindri Solon(Philip Madoc) Who lives with his assistant Condo. The Doctor knows Solon through his reputation as a pioneering authority on microsurgical techniques and tissue transplants, and that he mysteriously vanished after he was accused of being a member of the Sinister Cult of Morbius, whose members follow a renegade TimeLord named Morbius who committed despicable atrocities and promised an army of Mercenaries immortality, before leading them against the Time Lords, but was eventually caught on Karn and Executed.
At the Castle The Doctor is rendered unconcious and taken to Solon’s Laboratory for sinister experiments. Sarah Meanwhile Makes an alarming discovery and begins to suspect that Solon Is up to no good. However before Solon can do anything the Doctor Mysteriously Vanishes. The Sisterhood of Karn also acquire the TARDIS through telekinesis. When the Doctor regains Conciousness he finds himself at the Temple of The Sisterhood of Karn where they decide to execute him, but the Sisterhood are interrupted by Solon and Condo and the Doctor is rescued by Sarah Jane who is temporarily blinded while escaping from the Shrine of the Sisterhood of Karn.
The Doctor then returns to Solon’s castle seeking a cure for Sarah Jane’s blindness. However Solon informs him that the only cure is The Elixir of Life, so the Doctor unwillingly returns to the Shrine of the Sisterhood of Karn, where Maren is administering the last of the Elixir of Life before the Flame finally dies. Maren still does not trust The Doctor, however he examines the Flame of Life and learns how the Elixir of Life is Formed and decides to help.
Meanwhile back at the castle Sarah Jane unsuccessfully tries to escape and discovers that Solon is making a sinister bid to resurrect the Evil Renegade Time Lord Morbius By transplanting his brain into an artificial body made up of different alien species which he has collected and assembled. Solon then coerces Sarah Jane into assisting him and Shortly after the operation is completed the monstrous body of Morbius gets off the operating table and goes on the rampage…