Amidst the crisis of the global pandemic, a veteran MBTA transit police sergeant must navigate politics and protest while being on the lookout for a madman back from the dead. This latest edition of the Morris Fitzgerald series continues the journey above and below the streets of one of the country's oldest and most iconic cities. For Morris, the trouble ahead of him may be the past that he can't escape, but if there is something he knows for certain, it's that in Boston, a crime story isn't a whodunit. It's a "how did they get away with it?"