Letting a fine wine "breathe" proves deadly for the wine's owner Nick Kingston, who leaves it unattended for a killer to poison it. The vintner, who's hosting a party upstairs, comes back only to collapse. He tries to implicate the killer but breaks the wine cellar's only pencil, so he crawls to a wine rack and grabs a bottle, smashing it on the floor. The shattered bottle bears the label Black Falcon, indicating it was tied to World War One. But how?
—Peter Harris