Orpheus wakes to discover a priceless Caravaggio painting stolen from St. John's Cathedral in Valletta while under his watch. With the city on edge, a detective is brought in from Washington to aid the local police in solving the case.

Detective Thomas Borg is a troubled cop obsessed with solving a series of disappearances. His investigation is complicated by the sudden reappearance of Kristina, his former lover and informant, who claims to have information about the case.