Girls in Prison (1994)

Framed for the murder of a record company president in 1952 Hollywood, young, aspiring singer Aggie O'Hanlon is sentenced to life in prison and tries to adjust to her life life behind bars in a hellish womens prison where she is befriended by other "lifer" inmates who help her out when Aggie finds herself marked for murder by an unknown source who thinks she knows more about the murder than she does.