A man breaks down in a small town and seeks help from the local garage. After a lengthy search for the right part, he is directed to a gift shop to kill time while his car is being fixed. There he meets an attractive and straightforward woman with whom he engages in a rather fun flirtatious exchange. The two agree to meet for lunch and strike up an affair that leads to deception against his wife, and murder plots against her much older, much wealthier husband.