A Tour to Die ForA tour guide who specialises in serial killers knows better than most that San Francisco is a city with killer charm. Capri Sanzio knows that when you give serial killer walking tours for a living, unexpected situations are more common than San Francisco's famous fog. So, when one of her guests claims to see a woman being attacked during a tour, Capri remains unphased. The police search the apartment in question and find no evidence of anything amiss,