A claustrophobic sense of doom pervades the Summer of 1970, the final present-day storyline on Dark Shadows. In it, Barnabas Collins and Dr. Julia Hoffman try to unravel the mystery behind the insidious and increasingly malignant hauntings at the great house in an effort to prevent the destruction of Collinwood and its inhabitants. Meanwhile, they must also deal with a mysterious new vampire who prowls the estate. Professor and writer David M. Wingrove and writer Stephen R. Shutt visit the Terror at Collinwood podcast to dissect and explore this oft-ignored and/or scorned storyline, examining its various literary inspirations along the way. Often seen as DS’ attempt to recapture the success of the 'Turn of the Screw'-inspired “ghosts of Quentin and Beth” storyline, Summer of 1970 pulls inspiration from several classic sources, including tales by Oliver Onions and M.R. James, with a nod to Sheridan Le Fanu.