Played By: Marie Windsor
Movie: The Killing (1956)

The scheming wife to George Peatty, a small part of an elaborate racetrack heist, is fed up with his tenure as provider and decides it's time for new management, namely her side-lover Val. When George makes the fatal mistake of letting Sherry in on the plans, she enlists Val to kill George and the rest of the gang when they complete the heist and take the money for themselves. So, basically the best laid plans come crashing down because one guy couldn't respect the bros-over-hoes rule regarding his thirsty wife. The moral of the story: Keep your circle tight and the information even tighter.