The Hitchhiker (1983)

S4E11 Working Girl

Title: Working Girl Plot: A devoted housewife discovers her husband in a compromising situation with his mistress and, driven by betrayal, contemplates a drastic act of revenge. In a moment of heated emotion, she pulls out a gun, aiming for both of them. However, the mistress manages to flee just in time, leaving the wife to grapple with her feelings of anger and heartbreak.