Synopsis

Castle and Beckett’s investigation into the death of a treasure hunter quickly reveals a connection to a perplexing unsolved homicide from 1947, one involving a world-weary private detective. It becomes clear to Castle that the key to solving today's murder lies buried in the past. The events of forty years ago unfold in vivid, stylized flashbacks, with Castle embodying the hard-boiled detective and Beckett stepping into the role of a captivating, dangerous woman.