A suspenseful, mesmerizing story of a great quest for meaning, told in three intersecting narratives touching the lives of three different people and their families, and taking us on an extraordinary journey through the last century. We begin in the early 1900s, when Tomás discovers an ancient journal and sets out from Lisbon in one of the very first motor cars in Portugal in search of the strange treasure the journal describes. 35 years later, a pathologist devoted to the novels of Agatha Christie, whose wife has possibly been murdered, finds himself drawn into the consequences of Tomás's quest.