It was the author – Agatha Christie – and title that got me. Translated back into English that’s ‘Murder by Champagne’ and it took a moment to work out that this must be the novel that Christie published in 1945 – ‘Sparkling Cyanide’.
‘Sparkling Cyanide’ movie poster (note the yellow iris) and ‘Meurtre au Champagne’
Wine As Was 