Shockproof (1949)

After having served 5 years in prison for killing a man while defending her disreputable lover, Harry (John Baragrey), Jenny Marsh (Patricia Knight) is set for parole. Her parole officer, Griff Marat Cornel Wilde is determined to make Jenny go straight. For lack of other prospects, Griff finds Jenny a job in his own home, something totally against regulations. At first, Jenny still has feelings for Harry, but as Griff shows her more compassion and care, she falls in love with him - which Harry seems to encourage, because he has plans to crush Griff and his dreams of political office, and the situation soon becomes even more dangerous.