Beyond the Limit. The Detective Eric Shaw Trilogy, #3

How far would you go to protect a secret? The lifeless body of a woman wearing an evening dress is discovered in the party room of the wax museum. Everything would suggest suicide, but DCI Eric Shaw, team chief at the Forensic Services of Scotland Yard who's investigating the scene with crime scene investigator Adele Pennington, immediately notices a few similarities with the case of a serial killer nicknamed Plastic Surgeon, closed three years ago with the arrest of Robert Graham.
Perhaps someone is emulating Graham, or he had an accomplice, but there is a third possibility that especially concerns Eric, who, being convinced of Graham's guilt, tampered with the physical evidence to ensure his conviction. What if he made a mistake and sent the wrong person to jail?After eleven months, and despite her reluctance, he once again finds himself working with DI Miriam Leroux from the Murder Investigation Teams.
Now they have to race against time to follow the trail of the elusive murderer. This is possibly Shaw's final major case before a promotion to superintendent. The other contender for advancement being DCI George Jankowski, a man who is not afraid to weed out the dirty secrets of others to get what he wants. And Eric and his pupil hide an unspeakable secret.  The destiny of DCI Eric Shaw is about to be fulfilled.
This book is written in British English.