Jerry Winton has just lost a bundle at a casino in Deauville, France. After his lost, a seemingly shady character named Davos follows him to the bar and offers him a lot of money if he will meet him at a certain address in two hours. Winton agrees. The address Davos gave him opens into a courtyard that has a nice fountain- the "silver curtain" of the title. Davos enters the courtyard, screams and is soon found with a knife in his back. Winton had rushed toward the sound of the scream - no one else is in the courtyard. The only doorway to the courtyard is a doctor's office; both the doctor and his patient rushed to the door when they heard the scream and saw no one but Winton, who loudly protests his innocence, in the courtyard. The story then shifts to the police inspector and March. March had been in the casino observing Davos as part of his investigations into the paranormal and also had seen Winton at the casino. There is this great scene between Davos and March. Davos is at the bar, March comes up and says to Davos "Do you mind if I sit down?" Davos replies "Not at all." Davos then downs his drink, stands up and without another word, leaves. I have never seen such a magnificent snub. March's reaction to this is also perfect - he grins and shakes his head. It took me a moment to recognize Arthur Hill and it was his voice that first sounded familiar. It was nice seeing him fairly early in his career. I much enjoy Karloff in this series and wish more episodes than two were readily available.