It’s a sunny January morning in San Francisco, and John Callaghan, head of the powerful Callaghan crime syndicate, is about to be murdered.

The mystery isn’t why—over the years he’s made any number of enemies—but rather who. Many candidates are emerging, each with a story to tell: his violent nephew, his skeptical, world-weary lawyer, and his seemingly inept actor son-in-law. There are other complications: a greedy widow demanding money, an ambitious young upstart looking to move up, and rumors of a rat in the union crew.

Can the most dangerous man in San Francisco survive the threats inside his own crime family?