In the tranquil waters of the Marchica lagoon, the lifeless body of renowned architect Badr is found, shattering the serenity of the idyllic setting and plunging it into a chilling mystery. Veteran Inspector Said is called to unravel a case that seems impossible to solve: baffling clues, concealed motives, and a web of suspects, each guarding dark secrets. In this gripping, Agatha Christie-style tale of suspense and deception, Inspector Said must navigate the shadows of the lagoon to uncover the buried truths and answer the ultimate question: who is the killer?