How a mild, middle-aged man turned his London terrace into a mass graveyard

The shabby, dilapidated facade of 10 Rillington Place looked like every other terrace on the west London street. However, behind its front door was a house of horrors, with bodies concealed in the garden, beneath the floorboards and even in the kitchen cupboards.

Now long-demolished, the Notting Hill address was the home of serial killer and former clerk and special constable John Christie...