Two detectives are tasked to investigate the murder of an old man, found bludgeoned to death in a Tokyo rail yard.
When Sokichi stops providing his long-time lover Kikuyo enough money to pay for the care of their three young children, Kikuyo leaves the children with Sokichi - and his very surprised and angry wife Oume - and disappears.
A ship is attacked at sea for its cargo by a group of thieves who murder a newlywed doctor and rape his wife. Three years later her twin sister is kidnapped by the same pirates, who begin to die strange deaths...
