His name is Howard. Bob Howard. He is a computer programmer and occasional field agent for the Laundromat, a division of Her Majesty's Secret Service that combats occult threats. This time he is sent to the Caribbean coast. Howard must infiltrate the yacht of a billionaire who wants to raise a submarine that sank in the area many years ago. They once tried to establish contact with the world of the dead, but instead the crew attracted the attention of an ominous underwater race, which stopped the experiment in the most radical way. Now the ancients have turned their attention to people again, and Howard needs to prevent a global cataclysm. However, there is one problem: when you have a succubus as your partner, and you bear personal financial responsibility for every action, saving the world is very difficult.