In the first episode of Magnum, P.I's two-part Season Five opener, Magnum (Tom Selleck) is hired by socialite Diane Dupres (a pre-Basic Instinct Sharon Stone) to protect her from her evil twin sister Deidre. Magnum's client claims that Deidre has been a psychotic ever since she was kidnapped as a child, and now she intends to "purge" herself by murdering Diane. Meanwhile, a flustered Higgins likewise has "double trouble" when he ends up engaged to two women: his old friend Agatha Chumley (Gillian Dobb) and his former flame Lady Ashley (Carolyn Seymour). ~ Hal Erickson, Rovi