"Month of November, hot chocolate, and a small cameo of a child's face, imperfect only in its solemnity. And these are the improbable ingredients to a human emotion, an emotion, say, like - fear. But in a moment this woman, Helen Foley, will realize fear. She will understand what are the properties of terror. A little girl will lead her by the hand and walk with her into a nightmare."
Schoolteacher Helen Foley finds a strange and very serious little girl on the stairs outside her apartment. The little girl seems to know her, and tries to jog her memory about a man she saw earlier that day. The man arrives at Helen's door and Markie runs out the back way. The man is Peter Selden, who worked for Helen's mother when Helen was a child, and claimed to be the first to find her mother after she was murdered. Helen witnessed the murder but has blocked it out. She mentions Markie, and Selden tells her that was her nickname as a child, and shows her an old photo of herself. She then realizes that she and Markie are one and the same. Selden leaves, and Markie reappears. She tells Helen she is Helen, and that she is there to force her to remember her mother's murder. Selden returns and confesses to the murder, and say he has tracked down the only witness to his crime. She manages to run into the hallway and push Selden down the stairs to his death. Markie was a part of Helen that did remember the murder, and was trying to remind her conscious self of it."Miss Helen Foley, who has lived in night and who will wake up to morning. Miss Helen Foley, who took a dark spot from the tapestry of her life and rubbed it clean - then stepped back a few paces and got a good look at the Twilight Zone."