Murder by the Glass

Merlot-loving researcher Verity Long was happily sipping her way through a wine tasting weekend with her crime-writer boss — until the corpse of a fellow guest turned up in the winery.
When a storm isolates them and brings down power and phone lines, Verity forgets bouquets, acidity, and floral top notes to concentrate on catching a killer.

Unable to contact the police, and with no internet for researching her suspects' motives or backgrounds, the amateur sleuth will need to sniff out the killer soon, before the next dead body is her own.