The Oaks Trilogy is a trilogy of British television series developed from the American television drama pilot The Oaks, written and created by David Schulner. Each of the three series; entitled Marchlands, Lightfields and Kingfields were created and broadcast on ITV1. Each series follows the same premise: across five episodes, the lives of three families, in different time periods, who all occupy the same house, which haunted by a restless spirit, are explored. The previous house owners also appear to their successors as ghosts.