Serena (Jayne Heitmeyer) is a co-conspirator from the 1998 movie Snake Eyes. She is part of a very elaborate assassination that takes place during a boxing match.
During the televised fight in Atlantic City U.S. Navy Commander Kevin Dunne (Gary Sinise) is working as the officer in charge of security for Defence Secretary Charles Kirkland (Joel Fabiani) who is attending the fight.
While on duty Commander Dunne meets a beautiful voluptuous strawberry blonde-redhead wearing a low-cut red dress and ruby ring on her finger. While talking to the woman in red, whose name is Serena, the Defence Secretary is killed.
Atlantic City police detective Rick Santoro (Nicolas Cage) is also at the fight. He is an old friend of Commander Dunne. Santoro now tries to figure out what exactly happened in a very complex plot.
The curvaceous Serena is double crossed by the mastermind behind the assassination when he shoots her in be back. Her body is then dumped in a vat of wet cement.
During the closing credits workmen, who are building another casino move a heavy cement pillar into place. The heavy pillar is being lifted by a crane and carefully manuvered into place by hand as the camera slowly moves in on the workman's hand.
When the workman removes his hand we can see Serena’s ruby ring is visible on the pillar in which Serena is now encased for all time.