Folie à Deux is a premium Winery in the Napa Valley. Folie à Deux is a psychiatric term defined as the sharing of fantasies by 2 close friends. Folie à Deux was listed as one of the best 10 wineries in Califoria. Our best known label is Folie à Deux and a wine called Menage à Trois is also very popular, it is a great wine at a great value. The Tasting room is open 7 days a week from 10 to 5 and cave tours and barrel tasting are available by appointment.