They Might Be Giants is a 1971 film directed by Anthony Harvey and starring George C. Scott and Joanne Woodward. The film follows the story of Justin Playfair (Scott), a wealthy widow who has become convinced that he is Sherlock Holmes and spends his days investigating crimes in New York City.
Dr. Mildred Watson (Woodward) is assigned to Playfair's case and initially tries to help him come to terms with his delusions. However, as she spends more time with him, she begins to take his side and becomes his eager assistant in his investigations.
As Playfair becomes more and more obsessed with finding Moriarty, he begins to attract the attention of dangerous criminals who see him as a threat. Meanwhile, Dr. Watson struggles with her growing feelings for Playfair and the ethical implications of encouraging his delusions.
The film is a unique blend of psychological drama and mystery, with an offbeat sense of humor. It explores themes of mental illness, identity, and the power of imagination. George C. Scott delivers a standout performance as Playfair, capturing both the eccentricity and vulnerability of the character.