Forensics expert Enzo Macleod travels to a tiny island off the coast of Brittany to honor a promise he made long ago to a dead man by investigating his 20-year-old murder. In a fascinating development, Enzo learns that the man's study—the scene of the crime—has lain untouched ever since.

In the claustrophobic environment of the island's insular community, where the locals have no desire to see the painful case reopened, Macleod must try to find clues in plain sight that earlier investigators missed. Complicating matters are the man's attractive widow, who yearns for closure, and a man who was accused and acquitted of having committed the crime—and who remains the best suspect.

A crime scene frozen in time, a hostile local population, and a cryptic set of clues make this one of Enzo's most challenging cases.