....of loneliness, anxiety, mental illness. Simple, precise, giving a good story and nice performances. And, especially, questions, using a well crafted monologue and too familiar fears. A woman - alone in house. Thoughts. And hypothesis. And the return of the husband. The wise use of ambiguity. And not the expected answer. Because it is a good story. The happy end is the source of last effort for seduce the public. Not a case, but , maybe , a sort of confussion.