Moontide 1942 After a drunken binge on the San Pablo waterfront, longshoreman Bobo fears he may have killed a man In his uncertainty, he takes a job on an isolated bait barge That night, he rescues lovely Anna from a watery suicide attempt and installs her on the barge But Tiny, Bobos longtime pal and parasite, hopes to drive Anna away before domestic bliss tears Bobo away from him the still unsolved murder may be just the wedge Tiny needs Theres fog on the water and evil brewing