The main character is obsessed with gambling. He earns a lot of money on his little weakness - the murder of elderly, but very rich widows. Yes, even ... He did not just kill them. First, he makes love with them, then kills, and after that or eats them, or digs into the concrete.
A doctor takes in a mysterious man who washes ashore at her remote cottage with a gunshot wound. Quickly they both learn the killer has arrived to finish the job, while a storm has cut them off from the mainland.