A Greek opera singer wakes up one morning to discover that a tree has appeared overnight in the garden of her Paris house. Intrigued and unnerved, she turns to her neighbours: Vandoosler, an ex-cop fired from the police for having helped a murderer to escape, and three impecunious historians, Mathias, Marc and Lucien - THE THREE EVANGELISTS. They agree - because they're both curious and need the money - to dig around the tree and see if something has been buried there. They find nothing but soil. A few weeks later, Sophia disappears and nobody worries too much until her body is found burned to ashes in a car. Who killed the opera singer? Her husband, her ex-lover, her best friend? Or could it be her lovely niece recently moved to the capital? They all seem to have a motive.