Lyda

From X-Files Wiki

Lyda (played by Lily Tomlin) was a ghost who haunted a house in Maryland with her husband, Maurice. The story, according to Fox Mulder, was that - after World War I - Maurice and Lyda were "star-crossed lovers" who made a "lover's pact" and took their own lives. From that point on, they could be found haunting the house every Christmas Eve. Three double murders took place in the house over the following decades, leading Mulder to believe that the ghosts were involved. At Christmas 1998, he and Dana Scully visited the house and encountered the ghosts. Scully learned that Lyda was indeed a ghost when she noticed the gaping entry and exit wounds through her torso. Maurice and Lyda in particular seemed to take great pleasure in terrifying Mulder and Scully. (TXF: "How the Ghosts Stole Christmas")