The story is unusual because the first third of the show has no audible dialog...none. Instead, you see what happens through a house's window and the voices are muffled. A husband and wife are arguing. Eventually she slaps him and then he responds by beating her to death with a fireplace poker! He then wraps her body up and dumps her in his car's trunk. He then goes for a long drive. Eventually, he's pulled over by a policeman. It seems one of his rear lights is broken and the cop insists that it be fixed IMMEDIATELY...not tomorrow or even later that night...NOW. Considering the wife is in the trunk, this is a problem. What's next? See the show.
I think the basic idea in this episode is flawed. After all, I cannot imagine any policeman being THAT insistent that you fix a tail light immediately. Standard procedure is that they give you a warning ticket and if you get the problem fixed in a few days, there is no fine. About the only way they'd insist you had to have a problem fixed immediately was if it was potentially life threatening...such as sparks shooting out of your car or a wheel falling off the car! Despite this flaw, the episode is interesting and tense.
By the way, had BOTH tail lights gone out, then the story would have made a lot more sense!