Alex is having recurring dreams about two 19th-century men dueling over her. Her grandmother (Esther Role) detects something malevolent and asks her to come to visit, and Nick volunteers to go along. There, Alex starts seeing things (and one of the men from her dreams) that aren't there. Through a trance, her grandmother learns that Alex is being possessed by La Belle Dame Sans Merci (the beautiful lady without mercy), who wants to reunite and have another chance at life with her lover.
All-in-all, not a very good episode. It's dull and it has some rather silly elements. Too bad Esther Role was wasted in such a subpar episode. One good line does occur, however. Alex visits one of the men's grandson in a nursing home and the obese woman in the front says, "He doesn't like talking to coloreds." Alex says, "I can imagine he feels the same way I do about talking to fat people." Touché!