1860, Wimborne, Dorset.
With a pregnant wife at home, Colbeck must work at speed if he is to return in time for the birth..
Mayoral hopeful, Mr Feltham calls for the Railway Detective to solve the hideous crime.
Rebecca Tullidge, miserably married, is having an affair with a railway officer, who she finds dead on the railway tracks. 1860, Wimborne, Dorset