This was Stefan Zweig's one and only novel, who was a great psychologist and in this novel approached the realms of Dostoievsky's keen insight into the complexities of the human mind and dealing with it with a very delicate touch. The film has succeeded in embracing the terrible predicament of the officer, who sees no way out when a suicidal cripple has given him her unconditional love which he can't answer. It's a universally worrying situation for everyone involved, including her entire family, her doctor and his wife and his own regimental fellow officers, and the real title of the novel is "The Heart's Unrest", driving the unreleased passion of the heart to the brinks of hysteria and desperation, like also in his short story "Verwirrung der Gefühle" ("The Confusion of Feelings"). Lilli Palmer dominates the film giving one of her best performances of extreme charm and sensitivity, Cedric Hardwicke is perfect as the troubled doctor who is also stuck in the dilemma of not being able to deliver the truth, he is in a similar situation himself stuck for life as married to a blind wife (Gladys Cooper, always excellent), playing a vital part in the drama, while Albert Lieven is just as helpless in his role as he should be. It is beautifully filmed, Cecil Beaton having created the exquisite costumes, the environment is like the beauteous dream of a fairy tale but real, and reality is all too palpable as the first world war breaks out - Archduke Franz Ferdinand has a small part in the film. On the whole, it's a film well worth seeing for its challenging task of realizing a very worrying and troublesome story of a predicament that could happen to anyone.
It's interesting to compare this Stefan Zweig film with the other one of almost the same year, Max Ophuls' "Letter from an Unknown Woman", on one of his short stories. In that film very much is altered, the writer in the story is a pianist in the film, and the events of the story are much less tragic and poignant than in the film. In "Beware of Pity" very little is altered, it sticks to the book with carefulness, and still Max Ophuls' film is so much more interesting and gripping. Curiously enough, just by making so great changes to the story, he makes Stefan Zweig more alive and convincing, than the almost pedantic "Beware of Pity" being more true to the letter.