Dark Passage, Humphrey Bogart and Lauren Bacall

Dark Passage (1947) is a Warner Bros. film noir directed by Delmer Daves and starring Humphrey Bogart and Lauren Bacall. The film is based on the novel of the same name by David Goodis. It was the third of four films real-life couple Bacall and Bogart made together.
Vincent Parry, a man convicted of killing his wife, has escaped from San Quentin prison by stowing away in a supply truck. He evades police and hitches a ride with a passing motorist named Baker. Parry's odd clothes and a news report on the radio about an escaped convict make Baker suspicious. When questioned, Parry beats him unconscious. Irene Jansen, who had been painting nearby, picks up Parry and smuggles him past a police roadblock into San Francisco, offering him shelter in her apartment.

An acquaintance of Jansen, Madge, comes by Irene's apartment. Parry, without opening the door, tells her to go away. Madge was a former romantic interest of Parry's whom he had spurned. Out of spite she testified at his trial, providing a motive as to why he would have killed his wife. When she returns, Irene explains that she had followed Parry's case with interest. Her own father had been falsely convicted of murder, and since then she has taken an interest in miscarriages of justice. She believes that Parry is innocent.