Sometimes People Die by Simon Stephenson

A young doctor who is the unnamed narrator of the story has taken a job at St. Luke's Hospital in London after being suspended for stealing opioids at his previous job in Scotland. St. Luke's is a facility that is underfunded and where the staff is stretched to the limit. When patients begin dying under mysterious circumstances, the main character becomes the prime suspect because of his background. Sometimes People Die recounts the narrator's effort to clear his name while trying to find out who's responsible for murder. Taking place over the course of a year and told in the narrator's cynical style, it's a slow burn.