Lucy Catherine's supernatural thriller returns to the new town of Harland. 16 months have passed and no trace has been found of Detective Inspector Sarah Ward. She was last seen disappearing into the brooding sinkhole that swallowed a housing estate. Tyger Drew Honey stars as Dan, the lowly CCTV operative determined to solve the mystery. Dan ..... Tyger Drew-Honey Lindsay ..... Jasmine Hyde Morris ..... Rupert Holliday Evans Serena ..... Chloë Sommer Bob ..... David Hounslow Sarah ..... Ayesha Antoine Janice ..... Fiona Skinner Other parts played by Joanna Monro, Jonathan Forbes and Tom KiteleySound Design by Caleb Knightley Directed by Toby SwiftA BBC Audio production for BBC Radio 4