John Christie carried out multiple murders at 10 Rillington Place, but a tragic miscarriage of justice lead to Timothy Evans being hanged for a crime he did not commit.
We begin with John and his wife Ethel being reunited after nine years apart. They move into the ground floor flat and adjust to life in the small, rundown property.
Ten years later, Timothy and his wife Beryl move in upstairs and fall prey to Christie's influence and tales. But when they allow John to help them out, there are deadly consequences and so the spree begins...
Rillington Place, BBC1, 9pm
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