The Possessed (1965)

Famous writer Bernard travels to a small lakeside town for an off-season winter vacation. He checks into an old hotel owned by Enrico and his daughter Irma expecting to meet Tilde, the maid he had a crush on the last time he visited the town. However, he discovers that Tilde has committed suicide, and when he meets the local photographer, Bernard learns that she was pregnant. He becomes obsessed to find whether she really committed suicide and to guess what really happened. When Enrico's son Mario and his wife Adriana arrive at the hotel, Bernard has daydreams about Tilde's fate.