Student Finn Ryan accidentally discovers an unknown drawing by Michelangelo in the museum's collections, apparently torn from the legendary notebook of anatomical sketches, the existence of which has until now been questioned. That evening, someone breaks into Finn's apartment, kills her boyfriend, and steals Finn's sketches of a drawing. A series of brutal murders takes place in the city; all the dead are famous art collectors. The real hunt begins for Finn herself. The girl turns for help to a friend of her parents, with whom she desperately seeks a way to escape from a ruthless killer. As a result of their search, it becomes clear to them that all these events are connected with the terrible secret of the Church, for the sake of which the Vatican is ready to do anything to preserve.