Investigato. La comadreja del domingo

Architect Gallón is found dead in his studio, crushed by a huge stone egg. It's clearly a homicide. Investigato delves into the matter and quickly realizes they've opened a Pandora's box: Gallón was incompetent, a bungler, and had a few debts to pay. In short, he had a number of enemies... But who could hate him enough to want to get rid of him for good?