Darklands(1996)

Newspaper journalist Frazer Truick (Craig Fairbrass ) discovers rather too late that he is too be sacrificed by the neo-pagan cult like other members of his family such as his father.

He flees by train but his journey is cut short when the cultists intercept him in the train carriage he’s in. With the firearm he was given actually being a dud, he winds up being hanged beneath a bridge with his throat slit by the neo-pagan leader.

Nine months later, his newborn baby is ripped away from its mother and put up for adoption ready, to sacrificed when said child comes off age.