Books like Shock Treatment
James Hadley Chase
Shock Treatment is 128 pages, about 2 hours 21 minutes at 250 words a minute.
12 books to read next
How long each takes
Killing Floor 9.2 h 
Origin 11.6 h 
The Girl in Room 105 6.2 h 
Guest List 6.2 h 
Recursion 6.5 h 
The Visitor 8.9 h 
Billy Summers 11.2 h 
The Seven Deaths of Evelyn Hardcastle 9.2 h 
Without Fail 7.6 h 
Sometimes I Lie 6.7 h 
Slow Horses 6.2 h 
Hidden Bodies 8.2 h Bar height shows length. Estimated at 250 words a minute.