It's a british film, produced by phoenix films; later brought to the US by cbs. When blackmailers argue, one ends up dead. In a trunk. John loder is Ryder, who is looking for his wandering wife and her love letters. And gets caught up in the murder and mayhem. Co-stars peter haddon as lord wimsey. There are a couple clever lines, but you have to pay attention to catch them... it's very low key, subtle humor. The picture and sound quality of this copy on TV Time channel are pretty bad, but you get what you pay for. It's ad supported, with minimal ads, so i did miss a few things here and there. Can they trap the real murderer in time? Directed by reginald denham, whose specialty was murder mysteries. Original story by dot sayers. She had several works made into film or television.