Death by Advertisement

Successful advertising agent Victor Dean died in a ridiculous accident, falling off a ladder in the advertising agency. Well, anything can happen, right? However, Peter Wimsey has every reason to believe that Dean's death is not a twist of fate, but a well-planned murder. Posing as a new employee, he infiltrates the agency and discovers behind the respectable facade a real nest of people, for one reason or another, at odds with the law. Who among them and why got rid of Dean?...