Arthur Johnson has a secret that he keeps in the cellar of 142 Trinity Road, Kenbourne, where Ruth Rendell's A Demon in My View is set.
Arthur is an odd man, old-fashioned and stuffy, but pretty harmless. He does have a strange attitude towards women tho', especially "women who waited in the dark streets, asking for trouble, he cared nothing for them, their pain, their terror." Everything changes for Arthur when a new tenant arrives, a young, lovelorn PhD student by the name of Anthony Johnson.
We know from the beginning of the story what Arthur is capable of and as it unfolds we get to know his character and his past actions. The "other" Johnson, Anthony, unwittingly becomes Arthur's nemesis when an innocent and absent-minded act is seen by the older man as a "deliberate shunning of him".
There are plenty of details that help take the reader back to London in the early 70s, when the local cinema was still in business but under the new name of Taj Mahal and with a program of Indian movies. More specifically the dustmen were on strike. The period is important because some of the plot relies on the fact that people used to communicate with public telephones and written letters through the post.
The book is an easy-read psychological thriller which builds tension not through action, but by slowly revealing Arthur's backstory. Ruth Rendell doesn't try to hide important details, everything is clearly laid out. Nonetheless, there's a surprise at the end which is very satisfying.