Stranger in Our House is a 1978 American television horror film directed by Wes Craven and starring Linda Blair, Lee Purcell, Jeremy Slate, Jeff McCracken, and Jeff East. It is based on the 1976 novel Summer of Fear by Lois Duncan. The film premiered on NBC on October 31, 1978, and subsequently received theatrical releases in Europe under the title Summer of Fear.

Linda Denise Blair is an American actress and activist. Known for her work in the horror genre, she first came to prominence with her portrayal of Regan MacNeil in the film The Exorcist (1973), for which she won a Golden Globe Award and received a nomination for the Academy Award for Best Supporting Actress. The film established her as a scream queen and she reprised her role in two sequels: Exorcist II: The Heretic (1977) and The Exorcist: Believer (2023).