The two elderly sisters of the Oakley family live in poverty in an ancient mansion, and have decided to sell up to live comfortably from the profits.
However, things become more complicated when a young Polish man appears claiming rights to half the fortune. When he dies in circumstances familiar to the Oakley family, the sisters are haunted by the shadow of crime, and Superintendent Markby must look back at the events of a century ago to find the killer...
