Murder Must Advertise

Lord Peter Wimsey takes up employment as a copywriter for an advertising agency in order to discover more about the recent mysterious death of one of the employees. In the process he discovers much of the convoluted private lives of the other employees, as well as getting a feel for what it is like to work for a living. Eventually he traces a connection to a drug-smuggling operation, which he proceeds to infiltrate and uncover. Wimsey makes the connection between the drug-smugglers and the employee who has become their tool and has responded to a blackmail threat with murder.