Dr. David Sobin is a psychiatrist who was touring the Allasco Vineyard and Winery in Sonoma County, California. When Ben Gruber visited the vineyard and introduced himself to everyone, he later went to his room where he died of a heart attack. Upon finding his body and the load of money, he, alongside Sylvia Willis, Cal and Heidi Gefsky, Pierre LaCoste, and butler Ricardo agreed to split the money and clear any trace of Gruber being there. He and the other 5 were later arrested for covering up a crime.