Two couples living on the edge of Barton Woods disappear, leaving the village abuzz with rumors of supernatural causes. According to a local priest, the woods are haunted by the ghosts of monks slaughtered there in the 16th century. As the body count rises, a local psychic offers his services much to Barnaby's chagrin. Guest stars Anton Lesser (Game Of Thrones; Wolf Hall) and Jeroen Krabbe (The Fugitive, The Prince Of Tides).