One for the Road (1957)

One for the Road (1957) Charles Hendricks is happy. At home, he has a doting wife. On business trips, he has a doting mistress. Things only become difficult for him when his wife finds his mistress's cigarette lighter. She's not a jealous woman and makes little of it. But that first clue to his infidelity leads to another. And finally she knows. Unknown to him, his wife takes a trip to meet the other woman. She pretends to be collecting old clothes. But her real goal is far more sinister.