Blood Work

Michael Connelly's Blood Work introduces Terry McCaleb, a former FBI profiler recovering from a heart transplant aboard his boat in Los Angeles Harbor. His planned retirement changes when Graciela Rivers asks him to investigate the killing of her sister, Gloria. The request is inseparable from his recovery: Gloria was the donor whose heart now keeps McCaleb alive.

McCaleb returns to investigative work under strict physical limits, revisiting surveillance material and testing the assumption that Gloria died in a random robbery. The case gradually links personal obligation to the habits of a killer who may have designed the evidence to look ordinary.

The novel is useful to read as both a procedural and a study of borrowed time. Notice how boats, medical routines, recorded images, and professional instincts measure McCaleb's uncertain independence. This account stops before the investigation identifies its central pattern or culprit, preserving the reversals that follow from McCaleb's return to the hunt.