Daughter of Darkness (1948)

Emily, a pretty young Irish girl, gets a job on an English farm owned by the Tallent family. The local men take to her but the women don't, objecting to her flirtatious nature with their men and one woman, Bess Stanforth, is especially disturbed by her. When Dan, a man from Emily's past, shows up and accuses her of having tried to kill, him Beth's suspicions are further aroused, and they're confirmed after Dan is found murdered in a local barn. Beth sets out to find out exactly who Emily is and to prove that she murdered Dan.