The Second Woman (1950)

Jeff Cohalan's (Robert Young), wife is murdered while they were on their honeymoon Jeff is plagued by strange accidents and visions of her death.
He meets a beautiful young woman on a train, Ellen (Betsy Drake), and the two are very attracted to one another.
Ellen soon learns about Jeff's past and is quickly drawn into his strange dark world, even when she begins to realize that Jeff may be much more dangerous than he seems.
Directed by James V. Kern
(The failure of the original copyright holder to renew the film's copyright resulted in it falling into public domain)