When two fathers on opposite sides of the country are inexplicably murdered at the exact same time in the exact same way, Mulder and Scully are called in to investigate. When they discover that the two fathers' eight-year-old daughters are identical ... (more)twins, they realize that something even stranger is going on.

Christine Upright-Letain, David Kirby, Erika Krievins, Garry Davey, George Touliatos, Gordon Tipple, Harriet Sansom Harris, Harriet Sansom Harris, Janet Hodgkinson, Joe Maffei, Maria Herrera, Robert Lewis, Sabrina Krievins, Tasha Simms, Tina Gilbertson