This is a movie my father has been trying to figure out for years! He says he was around 4 or 6 years old when he saw it (so 1962 or 1964). He remembers just one scene:
A couple is arguing while driving in the car. It is pouring rain. They are in an old car (1930s/1940s style car, possibly 1950s). They strike a man on a bicycle. The are unsure if he’s dead and they are trying to decide if they should save him or leave the scene. The guy was underneath their car. It shows his hand and all of a sudden it turns into a skeleton finger and punctures the tire, making it impossible for them to leave.
This is all he remembers and I have searched online for movies, twilight zone episodes, alfred hitchcock. Please help!!! 🙂