TV Horizon - Season 21 Episode 13 : The Mind of a Murderer: The Mask of Madness Horizon - Season 21 Episode 13 : The Mind of a Murderer: The Mask of Madness 7.516/10 by 32 users Horizon presents the second part of a two-part documentary about Kenneth Bianchi, the Los Angeles Hillside Strangler, who was convicted of the murder of 12 women even though his defence was that he had no memory of the crimes. Details Casts Posters Images Title Horizon - Season 21 Episode 13 : The Mind of a Murderer: The Mask of Madness Alternative Titles BBC Horizon First Air Date 1964-02-04 Last Air Date 2024-07-22 Number of Episodes 1169 Number of Seasons 60 Genres Documentary, Networks BBC Two, Casts Plot Keywords , Episodes List Horizon Season 21 :Episode 1 The Intelligence Man The Intelligence Man 1984-01-09 Horizon tells amazing science stories, unravels mysteries and reveals worlds you've never seen before. Horizon Season 21 :Episode 2 Microworld! Microworld! 1984-01-16 Horizon tells amazing science stories, unravels mysteries and reveals worlds you've never seen before. Horizon Season 21 :Episode 3 A New Green Revolution? A New Green Revolution? 1984-01-23 Horizon tells amazing science stories, unravels mysteries and reveals worlds you've never seen before. Horizon Season 21 :Episode 4 Spies in the Wires Spies in the Wires 1984-01-30 Horizon tells amazing science stories, unravels mysteries and reveals worlds you've never seen before. Horizon Season 21 :Episode 5 Valley of the Inca Valley of the Inca 1984-02-13 Horizon tells amazing science stories, unravels mysteries and reveals worlds you've never seen before. Horizon Season 21 :Episode 6 The Conquest of Parasites The Conquest of Parasites 1984-02-27 Horizon tells amazing science stories, unravels mysteries and reveals worlds you've never seen before. Horizon Season 21 :Episode 7 Reflections on a River Reflections on a River 1984-03-05 Horizon tells amazing science stories, unravels mysteries and reveals worlds you've never seen before. Horizon Season 21 :Episode 8 A Normal Face A Normal Face 1984-03-12 Horizon tells amazing science stories, unravels mysteries and reveals worlds you've never seen before. Horizon Season 21 :Episode 9 Prisoners of Incest Prisoners of Incest 1984-03-19 Horizon tells amazing science stories, unravels mysteries and reveals worlds you've never seen before. Horizon Season 21 :Episode 10 Signs of the Apes, Songs of the Whales Signs of the Apes, Songs of the Whales 1984-03-26 Horizon tells amazing science stories, unravels mysteries and reveals worlds you've never seen before. Horizon Season 21 :Episode 11 Professor Bonner and the Slime Moulds Professor Bonner and the Slime Moulds 1984-04-09 Horizon tells amazing science stories, unravels mysteries and reveals worlds you've never seen before. Horizon Season 21 :Episode 12 The Mind of a Murderer: The Case of the Hillside Strangler The Mind of a Murderer: The Case of the Hillside Strangler 1984-04-16 Horizon tells amazing science stories, unravels mysteries and reveals worlds you've never seen before. Horizon Season 21 :Episode 13 The Mind of a Murderer: The Mask of Madness The Mind of a Murderer: The Mask of Madness 1984-04-23 Horizon tells amazing science stories, unravels mysteries and reveals worlds you've never seen before. Horizon Season 21 :Episode 14 A Cruel Inheritance A Cruel Inheritance 1984-04-30 Horizon tells amazing science stories, unravels mysteries and reveals worlds you've never seen before. Horizon Season 21 :Episode 15 The Malvern Link The Malvern Link 1984-05-07 Horizon tells amazing science stories, unravels mysteries and reveals worlds you've never seen before. Horizon Season 21 :Episode 16 Contented Cows and Other Animals Contented Cows and Other Animals 1984-11-05 Horizon tells amazing science stories, unravels mysteries and reveals worlds you've never seen before. Horizon Season 21 :Episode 17 Picking Winners Picking Winners 1984-11-12 Horizon tells amazing science stories, unravels mysteries and reveals worlds you've never seen before. Horizon Season 21 :Episode 18 The Brain Puzzle The Brain Puzzle 1984-11-19 Horizon tells amazing science stories, unravels mysteries and reveals worlds you've never seen before. Horizon Season 21 :Episode 19 Global Village Global Village 1984-11-26 Horizon tells amazing science stories, unravels mysteries and reveals worlds you've never seen before. Horizon Season 21 :Episode 20 Ivan Ivan 1984-12-03 Horizon tells amazing science stories, unravels mysteries and reveals worlds you've never seen before. Horizon Season 21 :Episode 21 A Mathematical Mystery Tour A Mathematical Mystery Tour 1984-12-10 Horizon tells amazing science stories, unravels mysteries and reveals worlds you've never seen before. Horizon Season 21 :Episode 22 Supercharged Supercharged 1984-12-17 Horizon tells amazing science stories, unravels mysteries and reveals worlds you've never seen before.