The opera singer Sophia Siméonidis 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, and three impecunious historians, Mathias, Marc and Lucien - the three evangelists. They agree 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 her body is found burned to ashes in a car. Who killed the opera singer? Her husband, her ex-lover, her best friend, her niece? They all seem to have a motive.Vandoosler and the three evangelists set out to find the truth.
