Baywatch - Season 4 Episode 16 Mirror, Mirror Cause I'm always ready, I won't let you out of my sight
Overview: An attractive wild young woman, named Mattie, and her plain twin sister, Gwen, arrive at the beach and vie for Mitch's affections. But Mitch is unaware that Mattie and Gwen are the same person, a woman with split personalities which soon lands Mitch in danger when Gwen's other personality, Mattie, means him physical harm.