Shockproof (1949)

In Douglas Sirk's drama, hard case Jenny Marsh, released from prison after five years for killing a man to protect her gambling lover Harry, comes under the wing of parole officer Griff Marat. Determined to make her go straight, and avoid the clutches of the still-infatuated Harry, Wilde moves her into his household as companion to his blind, widowed mother. But Jenny continues to hold clandestine meetings with her shady ex, and they hatch a scheme that guarantees their continued protection - marriage to Griff. The pair wed, but when Jenny truly falls in love with Griff, Harry doesn't take rejection lightly.