A vicious murderer who's pirating movies abducts Zena, hoping to exchange her for a videotape a dying man put into Kate's purse.

Zena, Kate, and Lou play a battle of wits with fellow detectives in a playful mystery weekend parlor game until the clues lead them to a real murder.

Kate is sure that Zena's new beau is an art thief who only strikes at parties given by the rich and famous. But her efforts to get some information on her mother's latest suitor are hampered by the FBI.