The novel revolves around the apparent suicide of a young cadet at a prestigious military academy. However, Brunetti suspects foul play and uncovers a web of corruption, abuse, and cover-ups within the academy's ranks. The story delves into themes of family, love, and the lengths parents go to protect their children. Brunetti contemplates the profound grief of losing a child and the lingering reminders that can reopen old wounds. Leon's vivid descriptions transport readers to the captivating city of Venice, providing a rich backdrop for the unraveling mystery.