In his declining years, the former writer Monsieur Herboise decided to spend the rest of his days in a luxurious boarding house for the elderly, Hibiscus. People gathered here, seeking to find long-awaited peace, to finally take a break from life's upheavals in comfort and a closed little world. But Monsieur Erboise’s dream was not destined to come true... When his neighbor died mysteriously, everyone wrote off this death as an accident. However, Herboise noticed one small discrepancy indicating that a murder had occurred. And he realized that he would not find peace until he revealed the truth and found the criminal... The novel was also published under the title “In his declining years.”