What looks like a drug overdose death of a reformed junkie-turned community activist results in Henry and Jo tracking a murderer. The complex investigation involves dirty dealings between a real estate developer and a community organizer with millions of dollars at stake. Henry flashes back to the same 1890s New York tenement where he worked as a doctor to help the poor, including an orphan boy who gives him a special handmade gift. Meanwhile, Abe cooks up a Sunday dinner feast for Henry, Jo and himself. When Jo tries to find out how the two men know one another, ...

Henry's mysterious anonymous caller confronts him by framing him for a murder. With the police closing in he is faced with the prospect of having to either leave town or confess his true nature to everyone.

Henry and Jo investigate the murder of an exiled king; Abe discovers something about his bloodline.

Henry tackles the most important case of his career: the disappearance of the love of his life, Abigail, after she left him. Desperate to find out where she might have gone, Abe, unbeknownst to Henry, secretly contacts Lucas to help find clues to her whereabouts. Already involved in a murder investigation with Jo, Henry involves Lucas and the team of detectives under the guise of searching for “Abe’s mother” — never letting on his own relationship with Abigail. Henry and Abe’s anxiety is ratcheted up as one terrifying domino falls after another until Henry uncovers the horrifying details of Abigail’s last secret.