A review of the sciences introduced by Christopher Chataway.

Did Sir William Crookes, later President of the Royal Society, really witness the materialisation of the buxom spirit of Katie King, long-dead daughter of a Caribbean pirate? Do famous experiments performed by parapsychologists prove beyond doubt that telepathy and precognition are scientific fact?
Horizon sifts the evidence for and against the existence of such occult phenomena, and invites viewers to participate in an experiment.