Mystery Street

Mystery Street is a 1950 blackandwhite film noir directed by John Sturges with cinematography by cinematographer John Alton. The film features Ricardo Montalban, Bruce Bennett, and Elsa Lanchester.

Blonde Bgirl Vivian played by Jan Sterling, is pregnant and tries to contact the father to seek help financially. He refuses to meet and stops taking her calls. She goes to The Grass Skirt bar in Boston where she works and picks up a drunk Marshall Thompson so she can use his car to drive to Cape Cod, where she can confront the father face to face.Vivian drives with the cars owner drunk by her side. When the man realizes hes miles from Boston, he demands to be taken back. Instead, she ditches him and steals the car. But the father of the child, James Harkley, kills Vivian rather than pay up or risk exposure of the affair to his wife and family. He buries Vivians body and sinks the car in a pond. ........

Source: Wikipedia