The sixth Charlotte Diamond mystery finds the retired FBI agent and her significant other, movie star Brenda Brandon, on the edge of the Florida Everglades to film a movie within a movie about an old movie. Brenda has taken a cameo role in the reprise of her first film experience, a Vietnam air war film of forty years earlier that was closed down by a brush with espionage, a murder, and the disappearance of the movie's star, White Orchid, factors that combined to pique the interest of the FBI. Charlotte has been hired as a technical consultant to help weave a blockbuster movie script out of the earlier, failed filming.

When the mysteries of the earlier film come back to haunt the new film crew and cast after the crash of a company plane in the Everglades, Charlotte finds herself deputized by the FBI to figure out not only what happened then, but what is happening now—and why. In this, she receives the help of another technical expert on the film, Ed Winslow, who always seems to know more than he is revealing and who takes an interest in Charlotte that equals that of Charlotte's former lover and FBI contact, Evan Worthington, who wants Charlotte back in his life.

As badly as Charlotte wants to unravel the mysteries of the lost White Orchid, an unknown someone seems even more determined to keep the past buried—even if it means that Charlotte needs to be buried as well.