Two fathers die under eerily similar circumstances in separate towns, leading Mulder and Scully to two identical little girls hiding a chilling genetic secret.
First aired: 1993-12-10
Director
Fred Gerber
Writers
Chris Brancato, Kenneth Biller
Guest cast
Jerry Hardin, Harriet Sansom Harris, Harriet Sansom Harris, Sabrina Krievins, Erika Krievins, Robert Lewis, Tasha Simms, Maria Herrera, George Touliatos, Garry Davey, Gordon Tipple, Joe Maffei, Christine Upright-Letain, David Kirby, Janet Hodgkinson, Tina Gilbertson