Woman on the Run (1950)

A sharp little noir. Troubled artist Frank Johnson (Ross Elliot) witnesses a gangland killing and fearful of being next decides to run away instead of staying around with a target on him. Not only are the police now looking for Frank but his wife Eleanor (Ann Sheridan), who has a rather curiously detached relationship with Frank, is too.

With the help of a newspaperman (Dennis O'Keffe) Eleanor looks for Frank, now knowing he is seriously ill with a weak heart. The police (Robert Keith) will stop at nothing to get Frank to give himself up, even restricting him getting the drug he needs to stay alive...

Sheridan makes this film with her snappy dialogue. The direction is sharp and fast moving. There is also a twist, a huge twist. It's revealed about half way through the film and adds to the tension of the film greatly. A low-key but excellent film.