Memorable episode. This episodes resembles more of a Twilight Zone episode than an Alfred Hitchcock episode for it's touch of the supernatural at the end.
Eileen Baral plays an orphan named Eva living with her aunt. Eva develops unusual behavior by making up imaginary friends. At first her Aunt doesn't mind but when these friends start ihfluencing her behavior in bad fashion , Aunt Nell (played beautifully by Margaret Leighton) intervene.
This episode is well acted. The girl Eileen Baral really makes you wonder about this child. At first you think she's an innocent girl going through a phase but at certain points you get the impression that she might be going mad.
In a way this episode is hinting at parent/child relationships. Her aunt cannot believe or humor her child by believing in her imaginary friends. Eva starts to dislike her more and more and runs away. The twist at the end is a bit expected but it was well done.
This is a great episode.