Alfred Hitchcock Presents S04E35 - Touché

Bill Fleming is upset that his wife is having an affair with Philip Baxter, the most recent of a long line of lovers. Bill is an ex-boxer and an outdoors man and nothing would give him more pleasure than to wring Baxter's neck. When he mentions to his fishing pal that he has a large collection of dueling weapons, his buddy suggests that he challenge Baxter to a duel. He tells Bill that under California law, you get special treatment in the courts if you kill someone in a duel. Little does Bill realize that his fishing pal had a purpose in giving Bill the advice he did.